Oracle 隐含参数

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set pagesize 9999
set line 9999
col NAME format a40
col KSPPDESC format a50
col KSPPSTVL format a20
SELECT a.INDX,
a.KSPPINM NAME,
a.KSPPDESC,
b.KSPPSTVL
FROM x$ksppi a,
x$ksppcv b
WHERE a.INDX = b.INDX
and lower(a.KSPPINM) like lower('%?meter%');

Oracle系统中还有一类参数称之为隐含参数（Hidden Parameters），在系统中使用，但Oracle官方没有公布的参数，这些参数可能是那些还没有成熟或者是系统开发中使用的参数。这些参数在所有Oracle官方提供的文档中都没有介绍，它们的命名有一个共同特征就是都以“_”作为参数的首字符。下面的查询可以得到当前系统中的所有隐藏参数，需要以SYS用户登陆，查看两个视图：X$KSPPI和X$KSPPCV。下面作者给出具体的SQL语句。
SET PAGESIZE 9999
SET LINE 9999
COL NAME FORMAT A40
COL KSPPDESC FORMAT A50
COL KSPPSTVL FORMAT A20
SELECT A.INDX,
A.KSPPINM NAME,
A.KSPPDESC,
B.KSPPSTVL
FROM X$KSPPI A,
X$KSPPCV B
WHERE A.INDX = B.INDX
AND A.KSPPINM LIKE '/_%' ESCAPE '/'
AND LOWER(A.KSPPINM) LIKE LOWER('%&PARAMETER%');
举个例子，如果需要查询隐含参数“_LM_DD_INTERVAL”的值，那么执行上面的代码后输入“_LM_DD_INTERVAL”就可以看到该隐含参数的值了，如下所示：
SYS@lhrdb> SET PAGESIZE 9999
SYS@lhrdb> SET LINE 9999
SYS@lhrdb> COL NAME FORMAT A40
SYS@lhrdb> COL KSPPDESC FORMAT A50
SYS@lhrdb> COL KSPPSTVL FORMAT A20
SYS@lhrdb> SELECT A.INDX,
2 A.KSPPINM NAME,
3 A.KSPPDESC,
4 B.KSPPSTVL
5 FROM X$KSPPI A,
6 X$KSPPCV B
7 WHERE A.INDX = B.INDX
8 AND A.KSPPINM LIKE '/_%' ESCAPE '/'
9 AND LOWER(A.KSPPINM) LIKE LOWER('%&PARAMETER%');
Enter value for parameter: _lm_dd_interval
old 9: AND LOWER(A.KSPPINM) LIKE LOWER('%&PARAMETER%')
new 9: AND LOWER(A.KSPPINM) LIKE LOWER('%_lm_dd_interval%')
INDX NAME KSPPDESC KSPPSTVL
---------- ---------------------------------------- -------------------------------------------------- --------------------
578 _lm_dd_interval dd time interval in seconds 10

可以看到该隐含参数的值为10。
对于隐含参数而言，修改隐含参数的值的时候需要将隐含参数用双引号括起来。若要清除SPFILE中的隐含参数可以使用RESET命令。
SYS@lhrdb> alter system set _lm_dd_interval=20 scope=spfile;
alter system set _lm_dd_interval=20 scope=spfile
*
ERROR at line 1:
ORA-00911: invalid character

SYS@lhrdb> alter system set "_lm_dd_interval"=20 scope=spfile;

System altered.

SYS@lhrdb> alter system reset "_lm_dd_interval" scope=spfile sid='*';

System altered.

普通用户是不具备查询隐含参数的权限的，可以通过创建视图和同义词的方式来解决这个问题，如下所示：
CREATE OR REPLACE VIEW VW_YH_PARAMETER_LHR AS
SELECT A.INDX, A.KSPPINM NAME, A.KSPPDESC, B.KSPPSTVL
FROM XKSPPIA,XKSPPIA,XKSPPCV B
WHERE A.INDX = B.INDX
AND A.KSPPINM LIKE '/_%' ESCAPE '/' --TRANSLATE (ksppinm, '_', '#') LIKE '#%'
;
GRANT SELECT ON VW_YH_PARAMETER_LHR TO PUBLIC;
CREATE PUBLIC SYNONYM VW_YH_PARAMETER_LHR FOR SYS.VW_YH_PARAMETER_LHR;

INDX	NAME	KSPPDESC	KSPPSTVL
0	_appqos_qt	System Queue time retrieval interval	10
1	_ior_serialize_fault	inject fault in the ior serialize code	0
2	_shutdown_completion_timeout_mins	minutes for shutdown operation to wait for sessions to complete	60
3	_inject_startup_fault	inject fault in the startup code	0
4	_latch_recovery_alignment	align latch recovery structures	65534
5	_spin_count	Amount to spin waiting for a latch	2000
6	_latch_miss_stat_sid	Sid of process for which to collect latch stats	0
7	_max_sleep_holding_latch	max time to sleep while holding a latch	4
8	_max_exponential_sleep	max sleep during exponential backoff	0
9	_other_wait_threshold	threshold wait percentage for event wait class Other	0
10	_other_wait_event_exclusion	exclude event names from _other_wait_threshold calculations
11	_use_vector_post	use vector post	TRUE
12	_latch_class_0	latch class 0
13	_latch_class_1	latch class 1
14	_latch_class_2	latch class 2
15	_latch_class_3	latch class 3
16	_latch_class_4	latch class 4
17	_latch_class_5	latch class 5
18	_latch_class_6	latch class 6
19	_latch_class_7	latch class 7
20	_latch_classes	latch classes override
21	_ultrafast_latch_statistics	maintain fast-path statistics for ultrafast latches	TRUE
22	_enable_reliable_latch_waits	Enable reliable latch waits	TRUE
23	_wait_breakup_time_csecs	Wait breakup time (in centiseconds)	300
24	_wait_breakup_threshold_csecs	Wait breakup threshold (in centiseconds)	600
25	_disable_wait_state	Disable wait state
26	_wait_tracker_num_intervals	Wait Tracker number of intervals	0
27	_wait_tracker_interval_secs	Wait Tracker number of seconds per interval	10
28	_wait_samples_max_time_secs	Wait Samples maximum time in seconds	120
29	_wait_samples_max_sections	Wait Samples maximum sections	40
30	_wait_yield_mode	Wait Yield - Mode	yield
31	_wait_yield_hp_mode	Wait Yield - High Priority Mode	yield
32	_wait_yield_sleep_time_msecs	Wait Yield - Sleep Time (in milliseconds)	1
33	_wait_yield_sleep_freq	Wait Yield - Sleep Frequency	100
34	_wait_yield_yield_freq	Wait Yield - Yield Frequency	20
35	_post_wait_queues_num_per_class	Post Wait Queues - Num Per Class
36	_post_wait_queues_dynamic_queues	Post Wait Queues - Num Dynamic Queues	40
37	lock_name_space	lock name space used for generating lock names for standby/clone database
38	processes	user processes	500
39	sessions	user and system sessions	772
40	timed_statistics	maintain internal timing statistics	TRUE
41	timed_os_statistics	internal os statistic gathering interval in seconds	0
42	resource_limit	master switch for resource limit	FALSE
43	license_max_sessions	maximum number of non-system user sessions allowed	0
44	license_sessions_warning	warning level for number of non-system user sessions	0
45	_session_idle_bit_latches	one latch per session or a latch per group of sessions	0
46	_ksu_diag_kill_time	number of seconds ksuitm waits before killing diag	5
47	_ksuitm_dont_kill_dumper	delay inst. termination to allow processes to dump	FALSE
48	_cleanup_timeout	timeout value for PMON cleanup	150
49	_cleanup_timeout_flags	flags for PMON cleanup timeout	2
50	_disable_image_check	Disable Oracle executable image checking	FALSE
51	_num_longop_child_latches	number of child latches for long op array	2
52	_longops_enabled	longops stats enabled	TRUE
53	_test_ksusigskip	test the function ksusigskip	5
54	_module_action_old_length	Use module and action old length parameter	TRUE
55	_disable_kcbhxor_osd	disable kcbh(c)xor OSD functionality	FALSE
56	_disable_kgghshcrc32_osd	disable kgghshcrc32chk OSD functionality	FALSE
57	_disable_system_state	disable system state dump	4294967294
58	_disable_system_state_wait_samples	Disable system state dump - wait samples	FALSE
59	_session_wait_history	enable session wait history collection	10
60	_pkt_enable	enable progressive kill test	FALSE
61	_pkt_start	start progressive kill test instrumention	FALSE
62	_pkt_pmon_interval	PMON process clean-up interval (cs)	50
63	_collapse_wait_history	collapse wait history	FALSE
64	_short_stack_timeout_ms	short stack timeout in ms	30000
65	_sga_early_trace	sga early trace event	0
66	_kill_session_dump	Process dump on kill session immediate	TRUE
67	_logout_storm_rate	number of processes that can logout in a second	0
68	_logout_storm_timeout	timeout in centi-seconds for time to wait between retries	5
69	_logout_storm_retrycnt	maximum retry count for logouts	600
70	_ksuitm_addon_trccmd	command to execute when dead processes don't go away
71	_timeout_actions_enabled	enables or disables KSU timeout actions	TRUE
72	_idle_session_kill_enabled	enables or disables resource manager session idle limit checks	TRUE
73	_session_allocation_latches	one latch per group of sessions	2
74	_disable_highres_ticks	disable high-res tick counter	FALSE
75	_timer_precision	VKTM timer precision in milli-sec	10
76	_dbrm_quantum	DBRM quantum
77	_highres_drift_allowed_sec	allowed highres timer drift for VKTM	1
78	_lowres_drift_allowed_sec	allowed lowres timer drift for VKTM	5
79	_vktm_assert_thresh	soft assert threshold VKTM timer drift	30
80	_iorm_tout	IORM scheduler timeout value in msec	1000
81	__oracle_base	ORACLE_BASE	/u01/app/oracle
82	_single_process	run without detached processes	FALSE
83	_disable_cpu_check	disable cpu_count check	FALSE
84	_available_core_count	number of cores for this instance	0
85	cpu_count	number of CPUs for this instance	2
86	_dbg_proc_startup	debug process startup	FALSE
87	_static_backgrounds	static backgrounds
88	_enqueue_deadlock_time_sec	requests with timeout <= this will not have deadlock detection	5
89	_number_cached_attributes	maximum number of cached attributes per instance	10
90	instance_groups	list of instance group names
91	_number_cached_group_memberships	maximum number of cached group memberships	32
92	_kss_quiet	if TRUE access violations during kss dumps are not recorded	FALSE
93	_kss_callstack_type	state object callstack trace type
94	event	debug event control - default null string
95	_oradebug_force	force target processes to execute oradebug commands?	FALSE
96	_ksdxdocmd_default_timeout_ms	default timeout for internal oradebug commands	30000
97	_ksdxdocmd_enabled	if TRUE ksdxdocmd* invocations are enabled	TRUE
98	_ksdx_charset_ratio	ratio between the system and oradebug character set	0
99	_oradebug_cmds_at_startup	oradebug commands to execute at instance startup
100	_watchpoint_on	is the watchpointing feature turned on?	FALSE
101	_ksdxw_num_sgw	number of watchpoints to be shared by all processes	10
102	_ksdxw_num_pgw	number of watchpoints on a per-process basis	10
103	_ksdxw_stack_depth	number of PCs to collect in the stack when watchpoint is hit	4
104	_ksdxw_cini_flg	ksdxw context initialization flag	0
105	_ksdxw_nbufs	ksdxw number of buffers in buffered mode	1000
106	sga_max_size	max total SGA size	1275068416
107	_enable_shared_pool_durations	temporary to disable/enable kgh policy	TRUE
108	_NUMA_pool_size	aggregate size in bytes of NUMA pool	Not specified
109	_enable_NUMA_optimization	Enable NUMA specific optimizations	FALSE
110	_enable_NUMA_support	Enable NUMA support and optimizations	FALSE
111	_enable_NUMA_interleave	Enable NUMA interleave mode	TRUE
112	_enable_LGPG_debug	Enable LGPG debug mode	FALSE
113	use_large_pages	Use large pages if available (TRUE/FALSE/ONLY)	TRUE
114	_max_largepage_alloc_time_secs	Maximum number of seconds to spend on largepage allocation	10
115	pre_page_sga	pre-page sga for process	FALSE
116	shared_memory_address	SGA starting address (low order 32-bits on 64-bit platforms)	0
117	hi_shared_memory_address	SGA starting address (high order 32-bits on 64-bit platforms)	0
118	use_indirect_data_buffers	Enable indirect data buffers (very large SGA on 32-bit platforms)	FALSE
119	_use_ism	Enable Shared Page Tables - ISM	TRUE
120	lock_sga	Lock entire SGA in physical memory	FALSE
121	_lock_sga_areas	Lock specified areas of the SGA in physical memory	0
122	_NUMA_instance_mapping	Set of nodes that this instance should run on	Not specified
123	_simulator_upper_bound_multiple	upper bound multiple of pool size	2
124	_simulator_pin_inval_maxcnt	maximum count of invalid chunks on pin list	16
125	_simulator_lru_rebalance_thresh	LRU list rebalance threshold (count)	10240
126	_simulator_lru_rebalance_sizthr	LRU list rebalance threshold (size)	5
127	_simulator_bucket_mindelta	LRU bucket minimum delta	8192
128	_simulator_lru_scan_count	LRU scan count	8
129	_simulator_internal_bound	simulator internal bound percent	10
130	_simulator_reserved_obj_count	simulator reserved object count	1024
131	_simulator_reserved_heap_count	simulator reserved heap count	4096
132	_simulator_sampling_factor	sampling factor for the simulator	2
133	_realfree_heap_max_size	minimum max total heap size, in Kbytes	32768
134	_realfree_heap_pagesize_hint	hint for real-free page size in bytes	65536
135	_realfree_heap_mode	mode flags for real-free heap	0
136	_use_realfree_heap	use real-free based allocator for PGA memory	TRUE
137	_pga_large_extent_size	PGA large extent size	1048576
138	_uga_cga_large_extent_size	UGA/CGA large extent size	262144
139	_total_large_extent_memory	Total memory for allocating large extents	0
140	_use_ism_for_pga	Use ISM for allocating large extents	TRUE
141	_private_memory_address	Start address of large extent memory segment
142	_mem_annotation_sh_lev	shared memory annotation collection level	0
143	_mem_annotation_pr_lev	private memory annotation collection level	0
144	_mem_annotation_scale	memory annotation pre-allocation scaling	1
145	_mem_annotation_store	memory annotation in-memory store	FALSE
146	_4031_dump_bitvec	bitvec to specify dumps prior to 4031 error	67194879
147	_4031_max_dumps	Maximum number of 4031 dumps for this process	100
148	_4031_dump_interval	Dump 4031 error once for each n-second interval	300
149	_4031_sga_dump_interval	Dump 4031 SGA heapdump error once for each n-second interval	3600
150	_4031_sga_max_dumps	Maximum number of SGA heapdumps	10
151	_4030_dump_bitvec	bitvec to specify dumps prior to 4030 error	4095
152	_numa_trace_level	numa trace event	0
153	_mem_std_extent_size	standard extent size for fixed-size-extent heaps	4096
154	_kgsb_threshold_size	threshold size for base allocator	16777216
155	_endprot_chunk_comment	chunk comment for selective overrun protection	chk 10235 dflt
156	_endprot_heap_comment	heap comment for selective overrun protection	hp 10235 dflt
157	_endprot_subheaps	selective overrun protection for subeheaps	TRUE
158	_sga_locking	sga granule locking state	none
159	_ksm_pre_sga_init_notif_delay_secs	seconds to delay instance startup at sga initialization (pre)	0
160	_ksm_post_sga_init_notif_delay_secs	seconds to delay instance startup at sga initialization (post)	0
161	processor_group_name	Name of the processor group that this instance should run in.
162	__shared_pool_size	Actual size in bytes of shared pool	503316480
163	shared_pool_size	size in bytes of shared pool	285212672
164	__large_pool_size	Actual size in bytes of large pool	67108864
165	large_pool_size	size in bytes of large pool	67108864
166	__java_pool_size	Actual size in bytes of java pool	67108864
167	java_pool_size	size in bytes of java pool	67108864
168	__streams_pool_size	Actual size in bytes of streams pool	67108864
169	streams_pool_size	size in bytes of the streams pool	67108864
170	_large_pool_min_alloc	minimum allocation size in bytes for the large allocation pool	65536
171	shared_pool_reserved_size	size in bytes of reserved area of shared pool	25165824
172	_shared_pool_reserved_pct	percentage memory of the shared pool allocated for the reserved area	5
173	_shared_pool_reserved_min_alloc	minimum allocation size in bytes for reserved area of shared pool	4400
174	java_soft_sessionspace_limit	warning limit on size in bytes of a Java sessionspace	0
175	java_max_sessionspace_size	max allowed size in bytes of a Java sessionspace	0
176	_kghdsidx_count	max kghdsidx count	2
177	_test_param_1	test parmeter 1 - integer	25
178	_test_param_2	test parameter 2 - string
179	_test_param_3	test parameter 3 - string
180	_test_param_4	test parameter 4 - string list
181	_test_param_5	test parmeter 5 - deprecated integer	25
182	_test_param_6	test parmeter 6 - size (ub8)	0
183	spfile	server parameter file	/u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileorclasm.ora
184	instance_type	type of instance to be executed	RDBMS
185	_disable_instance_params_check	disable instance type check for ksp	FALSE
186	_parameter_table_block_size	parameter table block size	2048
187	_high_priority_processes	High Priority Process Name Mask	LMS*\|VKTM
188	_os_sched_high_priority	OS high priority level	1
189	_ksb_restart_clean_time	process uptime for restarts	30000
190	_ksb_restart_policy_times	process restart policy times in seconds	0, 60, 120, 240
191	_ksd_test_param	KSD test parmeter	999
192	_kse_die_timeout	amount of time a dying process is spared by PMON (in centi-secs)	60000
193	_stack_guard_level	stack guard level	0
194	_kse_pc_table_size	kse pc table cache size	256
195	_kse_signature_entries	number of entries in the kse stack signature cache	0
196	_kse_signature_limit	number of stack frames to cache per kse signature	7
197	_kse_snap_ring_size	ring buffer to debug internal error 17090	0
198	_kse_snap_ring_record_stack	should error snap ring entries show a short stack trace	FALSE
199	_kse_trace_int_msg_clear	enables soft assert of KGECLEAERERROR is cleares an interrupt message	FALSE
200	_system_api_interception_debug	enable debug tracing for system api interception	FALSE
201	_messages	message queue resources - dependent on # processes & # buffers	1000
202	_enqueue_locks	locks for managed enqueues	9100
203	_enqueue_resources	resources for enqueues	3616
204	_enqueue_hash	enqueue hash table length	1579
205	_enqueue_debug_multi_instance	debug enqueue multi instance	FALSE
206	_enqueue_hash_chain_latches	enqueue hash chain latches	2
207	_enqueue_deadlock_scan_secs	deadlock scan interval	0
208	_enqueue_paranoia_mode_enabled	enable enqueue layer advanced debugging checks	FALSE
209	_ksi_trace	KSI trace string of lock type(s)
210	_ksi_trace_bucket	memory tracing: use ksi-private or rdbms-shared bucket	PRIVATE
211	_ksi_trace_bucket_size	size of the KSI trace bucket	8192
212	_ksi_clientlocks_enabled	if TRUE, DLM-clients can provide the lock memory	TRUE
213	_trace_processes	enable KST tracing in process	ALL
214	_trace_events	trace events enabled at startup
215	_trace_buffers	trace buffer sizes per process	ALL:256
216	_trace_dump_static_only	if TRUE filter trace dumps to always loaded dlls	FALSE
217	_trace_dump_all_procs	if TRUE on error buckets of all processes will be dumped to the current trace file	FALSE
218	_trace_dump_cur_proc_only	if TRUE on error just dump our process bucket	FALSE
219	_trace_dump_client_buckets	if TRUE dump client (ie. non-kst) buckets	TRUE
220	_cdmp_diagnostic_level	cdmp directory diagnostic level	2
221	nls_language	NLS language name	AMERICAN
222	nls_territory	NLS territory name	AMERICA
223	nls_sort	NLS linguistic definition name	BINARY
224	nls_date_language	NLS date language name	AMERICAN
225	nls_date_format	NLS Oracle date format	YYYY-MM-DD HH24:MI:SS
226	nls_currency	NLS local currency symbol	$
227	nls_numeric_characters	NLS numeric characters	.,
228	nls_iso_currency	NLS ISO currency territory name	AMERICA
229	nls_calendar	NLS calendar system name	GREGORIAN
230	nls_time_format	time format	HH.MI.SSXFF AM
231	nls_timestamp_format	time stamp format	DD-MON-RR HH.MI.SSXFF AM
232	nls_time_tz_format	time with timezone format	HH.MI.SSXFF AM TZR
233	nls_timestamp_tz_format	timestamp with timezone format	DD-MON-RR HH.MI.SSXFF AM TZR
234	nls_dual_currency	Dual currency symbol	$
235	nls_comp	NLS comparison	BINARY
236	nls_length_semantics	create columns using byte or char semantics by default	BYTE
237	nls_nchar_conv_excp	NLS raise an exception instead of allowing implicit conversion	FALSE
238	_nchar_imp_cnv	NLS allow Implicit Conversion between CHAR and NCHAR	TRUE
239	_nls_parameter_sync_enabled	enables or disables updates to v$parameter whenever an alter session statement modifies various nls parameters	TRUE
240	_disable_file_locks	disable file locks for control, data, redo log files	FALSE
241	_ksfd_verify_write	verify asynchronous writes issued through ksfd	FALSE
242	_disable_odm	disable odm feature	FALSE
243	fileio_network_adapters	Network Adapters for File I/O
244	_enable_list_io	Enable List I/O	FALSE
245	filesystemio_options	IO operations on filesystem files	none
246	_omf	enable/disable OMF	enabled
247	_aiowait_timeouts	Number of aiowait timeouts before error is reported	100
248	_io_shared_pool_size	Size of I/O buffer pool from SGA	4194304
249	_max_io_size	Maximum I/O size in bytes for sequential file accesses	1048576
250	_io_statistics	if TRUE, ksfd I/O statistics are collected	TRUE
251	_disk_sector_size_override	if TRUE, OSD sector size could be overridden	FALSE
252	_simulate_disk_sectorsize	Enables skgfr to report simulated disk sector size	0
253	_enable_asyncvio	enable asynch vectored I/O	FALSE
254	_iocalibrate_max_ios	iocalibrate max I/Os per process	0
255	_iocalibrate_init_ios	iocalibrate init I/Os per process	2
256	clonedb	clone database	FALSE
257	_db_file_direct_io_count	Sequential I/O buf size	1048576
258	_cell_fast_file_create	Allow optimized file creation path for Cells	TRUE
259	_cell_fast_file_restore	Allow optimized rman restore for Cells	TRUE
260	_file_size_increase_increment	Amount of file size increase increment, in bytes	67108864
261	_ioslave_issue_count	IOs issued before completion check	500
262	_ioslave_batch_count	Per attempt IOs picked	1
263	disk_asynch_io	Use asynch I/O for random access devices	TRUE
264	tape_asynch_io	Use asynch I/O requests for tape devices	TRUE
265	_io_slaves_disabled	Do not use I/O slaves	FALSE
266	dbwr_io_slaves	DBWR I/O slaves	0
267	_lgwr_io_slaves	LGWR I/O slaves	0
268	_arch_io_slaves	ARCH I/O slaves	0
269	_backup_disk_io_slaves	BACKUP Disk I/O slaves	0
270	backup_tape_io_slaves	BACKUP Tape I/O slaves	FALSE
271	_fg_iorm_slaves	ForeGround I/O slaves for IORM	1
272	_backup_io_pool_size	memory to reserve from the large pool	1048576
273	_reset_maxcap_history	reset maxcap history time	10
274	_high_server_threshold	high server thresholds	0
275	_low_server_threshold	low server thresholds	0
276	_active_session_idle_limit	active session idle limit	5
277	_active_session_legacy_behavior	active session legacy behavior	FALSE
278	resource_manager_cpu_allocation	Resource Manager CPU allocation	2
279	_resource_manager_plan	resource mgr top plan for internal use
280	resource_manager_plan	resource mgr top plan
281	_vkrm_schedule_interval	VKRM scheduling interval	10
282	_dbrm_dynamic_threshold	DBRM dynamic threshold setting	16843752
283	_resource_manager_always_off	disable the resource manager always	FALSE
284	_resource_manager_always_on	enable the resource manager always	TRUE
285	_io_resource_manager_always_on	io resource manager always on	FALSE
286	_max_small_io	IORM:max number of small I/O's to issue	0
287	_max_large_io	IORM:max number of large I/O's to issue	0
288	_auto_assign_cg_for_sessions	auto assign CGs for sessions	FALSE
289	_rm_numa_simulation_pgs	number of PGs for numa simulation in resource manager	0
290	_rm_numa_simulation_cpus	number of cpus for each pg for numa simulation in resource manager	0
291	_rm_numa_sched_enable	Is Resource Manager (RM) related NUMA scheduled policy enabled	FALSE
292	_dbrm_runchk	Resource Manager Diagnostic Running Thread Check	0
293	_dbrm_short_wait_us	Resource Manager short wait length	300
294	_dbrm_num_runnable_list	Resource Manager number of runnable list per NUMA node	0
295	_db_check_cell_hints		FALSE
296	_pqq_enabled	Enable Resource Manager based Parallel Statement Queuing	TRUE
297	_pqq_debug_txn_act	pq queuing transaction active	FALSE
298	_ksr_unit_test_processes	number of ksr unit test processes	0
299	_ksv_spawn_control_all	control all spawning of background slaves	FALSE
300	_ksv_max_spawn_fail_limit	bg slave spawn failure limit	5
301	_ksv_pool_wait_timeout	bg slave pool wait limit	600
302	_ksv_pool_hang_kill_to	bg slave pool terminate timeout	0
303	_ksvppktmode	ksv internal pkt test	0
304	_ksv_static_flags1	ksv static flags 1 - override default behavior	0
305	_ksv_dynamic_flags1	ksv dynamic flags 1 - override default behavior	0
306	_first_spare_parameter	first spare parameter - integer
307	_second_spare_parameter	second spare parameter - integer
308	_third_spare_parameter	third spare parameter - integer
309	_fourth_spare_parameter	fourth spare parameter - integer
310	_fifth_spare_parameter	fifth spare parameter - integer
311	_sixth_spare_parameter	sixth spare parameter - integer
312	_seventh_spare_parameter	seventh spare parameter - integer
313	_eighth_spare_parameter	eighth spare parameter - integer
314	_ninth_spare_parameter	ninth spare parameter - integer
315	_tenth_spare_parameter	tenth spare parameter - integer
316	_eleventh_spare_parameter	eleventh spare parameter - string
317	_twelfth_spare_parameter	twelfth spare parameter - string
318	_thirteenth_spare_parameter	thirteenth spare parameter - string
319	_fourteenth_spare_parameter	fourteenth spare parameter - string
320	_fifteenth_spare_parameter	fifteenth spare parameter - string
321	_sixteenth_spare_parameter	sixteenth spare parameter - string list
322	_seventeenth_spare_parameter	seventeenth spare parameter - string list
323	_eighteenth_spare_parameter	eighteenth spare parameter - string list
324	_nineteenth_spare_parameter	nineteenth spare parameter - string list
325	_twentieth_spare_parameter	twentieth spare parameter - string list
326	_ksxp_ping_enable	disable dynamic loadin of lib skgxp	TRUE
327	_ksxp_ping_polling_time	max. arrays for ipc statistics	0
328	_ksxp_disable_dynamic_loading	disable dynamic loadin of lib skgxp	FALSE
329	_ksxp_disable_rolling_migration	disable possibility of starting rolling migration	FALSE
330	_skgxp_udp_use_tcb	disable use of high speek timer	TRUE
331	_ksxp_skgxp_library_path	over-ride default location of lib skgxp
332	_ksxp_skgxp_compat_library_path	over-ride default location of lib skgxp compat
333	_ksxp_disable_ipc_stats	disable ipc statistics	FALSE
334	_ksxp_max_stats_bkts	max. arrays for ipc statistics	0
335	_ksxp_init_stats_bkts	initial number arrays for ipc statistics	0
336	_ksxp_stats_mem_lmt	limit ipc statistics memory. this parameter is a percentage value	0
337	cluster_interconnects	interconnects for RAC use
338	_rm_cluster_interconnects	interconnects for RAC use (RM)
339	_ksxp_disable_clss	disable CLSS interconnects	0
340	_ksxp_send_timeout	set timeout for sends queued with the inter-instance IPC	300
341	_ksxp_dump_timeout	set timeout for kjzddmp request	20
342	_ksxp_diagmode	set to OFF to disable automatic slowsend diagnostics	OFF
343	_skgxp_reaping	tune skgxp OSD reaping limit	1000
344	_ksxp_reaping	tune ksxp layer reaping limit	20
345	_ksxp_wait_flags	tune ksxpwait	0
346	_ksxp_control_flags	modify ksxp behavior	0
347	_skgxp_udp_hiwat_warn	ach hiwat mark warning interval	1000
348	_skgxp_udp_ach_reaping_time	time in minutes before idle ach's are reaped	120
349	_skgxp_udp_timed_wait_seconds	time in seconds before timed wait is invoked	5
350	_skgxp_udp_timed_wait_buffering	diagnostic log buffering space (in bytes) for timed wait (0 means unbufferd	1024
351	_skgxp_udp_keep_alive_ping_timer_secs	connection idle time in seconds before keep alive is initiated. min: 30 sec max: 1800 sec default: 300 sec	300
352	_disable_duplex_link	Turn off connection duplexing	TRUE
353	_diag_diagnostics	Turn off diag diagnostics	TRUE
354	_disable_interface_checking	disable interface checking at startup	FALSE
355	_skgxp_udp_interface_detection_time_secs	time in seconds between interface detection checks	60
356	_skgxp_udp_lmp_on	enable UDP long message protection	FALSE
357	_skgxp_udp_lmp_mtusize	MTU size for UDP LMP testing	0
358	_skgxp_udp_enable_dynamic_credit_mgmt	Enables dynamic credit management	0
359	_skgxp_udp_ack_delay	Enables delayed acks	0
360	_skgxp_gen_ant_ping_misscount	ANT protocol ping miss count	3
361	_skgxp_gen_rpc_no_path_check_in_sec	ANT ping protocol miss count	5
362	_skgxp_gen_rpc_timeout_in_sec	VRPC request timeout when ANT enabled	300
363	_skgxp_gen_ant_off_rpc_timeout_in_sec	VRPC request timeout when ANT disabled	30
364	_skgxp_min_zcpy_len	IPC threshold for zcpy operation (default = 0 - disabled)	0
365	_skgxp_min_rpc_rcv_zcpy_len	IPC threshold for rpc rcv zcpy operation (default = 0 - disabled)	0
366	_skgxp_zcpy_flags	IPC zcpy options flags	0
367	_skgxp_ctx_flags1	IPC debug options flags (oss)	0
368	_skgxp_ctx_flags1mask	IPC debug options flags mask (oss)	0
369	_skgxp_dynamic_protocol	IPC protocol override (!0/-1=*,2=UDP,3=RDS,0x1000=ipc_X)	0
370	_skgxp_inets	limit SKGXP networks
371	_skgxp_rgn_ports	region socket limits (0xFFFFNNXX): F=flags, N=min, X=max	0
372	_ksxp_skgxp_ctx_flags1	IPC debug options flags (RAC)	0
373	_ksxp_skgxp_ctx_flags1mask	IPC debug options flags mask (RAC)	0
374	_ksxp_skgxp_dynamic_protocol	IPC protocol override (RAC) (0/-1=*,2=UDP,3=RDS,!0x1000=ipc_X)	4096
375	_ksxp_skgxp_rgn_ports	region socket limits (0xFFFFNNXX): F=flags, N=min, X=max	0
376	_ksxp_dynamic_skgxp_param	dynamic skgxp parameters
377	_ksxp_if_config	ksxp if config flags	0
378	_ksxp_compat_flags	ksxp compat flags	0
379	_skgxp_spare_param1	ipc oss spare parameter 1
380	_ksxp_skgxp_spare_param1	ipc ksxp spare parameter 1
381	_skgxp_spare_param2	ipc oss spare parameter 2
382	_ksxp_skgxp_spare_param2	ipc ksxp spare parameter 2
383	_skgxp_spare_param3	ipc oss spare parameter 3
384	_ksxp_skgxp_spare_param3	ipc ksxp spare parameter 3
385	_skgxp_spare_param4	ipc oss spare parameter 4
386	_ksxp_skgxp_spare_param4	ipc ksxp spare parameter 4
387	_skgxp_spare_param5	ipc oss spare parameter 5
388	_ksxp_skgxp_spare_param5	ipc ksxp spare parameter 5
389	_skgxpg_last_parameter	last defined skgxpg parameter - oss	26
390	_ksxp_skgxpg_last_parameter	last defined skgxpg parameter - ksxp	26
391	_ksxp_testing	KSXP test parameter	0
392	_ksxp_reporting_process	reporting process for KSXP	LMD0
393	_ksxp_unit_test_byte_transformation	enable byte transformation unit test	FALSE
394	_ksxp_lwipc_enabled	enable lwipc for KSXP	FALSE
395	_ksmd_protect_mode	KSMD protect mode for catching stale access	off
396	_ksmg_granule_size	granule size in bytes	16777216
397	_ksmg_granule_locking_status	granule locking status	1
398	_ksmg_lock_check_interval	timeout action interval in minutes
399	_ksmg_lock_reacquire_count	repeat count for acquisition of locks	5
400	file_mapping	enable file mapping	FALSE
401	_filemap_dir	FILEMAP directory
402	_object_statistics	enable the object level statistics collection	TRUE
403	_object_stats_max_entries	Maximum number of entries to be tracked per stat	3072
404	_enable_rlb	enable RLB metrics processing	TRUE
405	_enable_midtier_affinity	enable midtier affinity metrics processing	TRUE
406	_midtier_affinity_clusterwait_threshold	cluster wait threshold to enter affinity	100
407	_midtier_affinity_goodness_threshold	goodness gradient threshold to dissolve affinity	2000
408	_service_cleanup_timeout	timeout to peform service cleanup	30
409	_max_services	maximum number of database services	150
410	_disable_health_check	Disable Health Check	FALSE
411	_mpmt_enabled	MPMT mode enabled	FALSE
412	_spawn_diag_thresh_secs	thread spawn diagnostic minimal threshold in seconds	30
413	_spawn_diag_opts	thread spawn diagnostic options	0
414	_sched_delay_sample_interval_ms	scheduling delay sampling interval in ms	1000
415	_sched_delay_max_samples	scheduling delay maximum number of samples	4
416	_sched_delay_sample_collection_thresh_ms	scheduling delay sample collection duration threshold ms	200
417	_sched_delay_measurement_sleep_us	scheduling delay mesurement sleep us	1000
418	_sched_delay_os_tick_granularity_us	os tick granularity used by scheduling delay calculations	16000
419	_accept_versions	List of parameters for rolling operation
420	_hang_analysis_num_call_stacks	hang analysis num call stacks	3
421	_local_hang_analysis_interval_secs	the interval at which local hang analysis is run	3
422	_deadlock_resolution_level	automatic deadlock resolution level	1
423	_deadlock_resolution_incidents_enabled	create incidents during deadlock resolution	TRUE
424	_deadlock_resolution_incidents_always	create incidents when resolving any deadlock?	FALSE
425	_deadlock_resolution_min_wait_timeout_secs	the minimum wait timeout required for deadlock resolution	60
426	_deadlock_resolution_signal_process_thresh_secs	the amount of time given to process a deadlock resolution signal	60
427	_heur_deadlock_resolution_secs	the heuristic wait time per node for deadlock resolution	0
428	_deadlock_diagnostic_level	automatic deadlock resolution diagnostics level	2
429	_blocking_sess_graph_cache_size	blocking session graph cache size in bytes
430	_diag_proc_enabled	enable hung process diagnostic API	TRUE
431	_diag_proc_stack_capture_type	hung process diagnostic API stack capture type	1
432	_diag_proc_max_time_ms	hung process diagnostic API max wait time in milliseconds	30000
433	_hang_msg_checksum_enabled	enable hang graph message checksum	TRUE
434	_kspol_tac_timeout	timeouts for TAC registerd by kspol	5
435	_disable_12751	disable policy timeout error (ORA-12751)	FALSE
436	_diskmon_pipe_name	DiSKMon skgznp pipe name
437	_dskm_health_check_cnt	DiSKMon health check counter	20
438	_ksmb_debug	ksmb debug flags	0
439	_pmon_enable_dead_blkrs	look for dead blockers during PMON cleanup	TRUE
440	_pmon_dead_blkrs_scan_rate_secs	rate to scan for dead blockers during cleanup (in seconds)	3
441	_pmon_dead_blkrs_alive_chk_rate_secs	rate to check blockers are alive during cleanup (in seconds)	3
442	_pmon_dead_blkrs_max_cleanup_attempts	max attempts per blocker while checking dead blockers	5
443	_pmon_dead_blkrs_max_blkrs	max blockers to check during cleanup	200
444	_pmon_max_consec_posts	PMON max consecutive posts in main loop	5
445	_dead_process_scan_interval	PMON dead process scan interval (in seconds)	60
446	_main_dead_process_scan_interval	PMON main dead process scan interval (in seconds)	0
447	_use_platform_compression_lib	Enable platform optimized compression implementation	FALSE
448	_use_platform_encryption_lib	Enable platform optimized encryption implementation	TRUE
449	_use_hybrid_encryption_mode	Enable platform optimized encryption in hybrid mode	FALSE
450	_xengem_diagmode	set to OFF to disable VM GEM support and functionalities	OFF
451	_xengem_devname	override default VM GEM device name used by skgvm	DEFAULT
452	_xengem_enabled	Enable OVM GEM support	TRUE
453	_diag_daemon	start DIAG daemon	TRUE
454	_dump_system_state_scope	scope of sysstate dump during instance termination	local
455	_dump_trace_scope	scope of trace dump during a process crash	global
456	_dump_interval_limit	trace dump time interval limit (in seconds)	120
457	_dump_max_limit	max number of dump within dump interval	5
458	_diag_dump_timeout	timeout parameter for SYNC dump	30
459	_diag_dump_request_debug_level	DIAG dump request debug level (0-2)	1
460	_diag_crashdump_level	parameter for systemstate dump level, used by DIAG during crash	10
461	_hang_detection_enabled	Hang Management detection	TRUE
462	_hang_detection_interval	Hang Management detection interval in seconds	32
463	_hang_resolution_scope	Hang Management hang resolution scope	PROCESS
464	_hang_resolution_policy	Hang Management hang resolution policy	HIGH
465	_hang_resolution_confidence_promotion	Hang Management hang resolution confidence promotion	FALSE
466	_hang_resolution_global_hang_confidence_promotion	Hang Management hang resolution global hang confidence promotion	FALSE
467	_hang_resolution_promote_process_termination	Hang Management hang resolution promote process termination	FALSE
468	_hang_output_suspected_hangs	Hang Management enabled output of suspected hangs	FALSE
469	_hang_signature_list_match_output_frequency	Hang Signature List matched output frequency	10
470	_hm_analysis_output_disk	if TRUE the hang manager outputs hang analysis results to disk	FALSE
471	_hm_analysis_oradebug_node_dump_level	the oradebug node dump level for hang manager hang analysis	0
472	_hm_analysis_oradebug_sys_dump_level	the oradebug system state level for hang manager hang analysis	0
473	_global_hang_analysis_interval_secs	the interval at which global hang analysis is run	10
474	_hang_verification_interval	Hang Management verification interval in seconds	46
475	_hang_ignored_hangs_interval	Time in seconds ignored hangs must persist after verification	300
476	_hang_ignored_hang_count	Hang Management ignored hang count	1
477	_hang_hiload_promoted_ignored_hang_count	Hang Management high load or promoted ignored hang count	2
478	_hang_log_incidents	Hang Manager incident logging	FALSE
479	_hang_long_wait_time_threshold	Long session wait time threshold in seconds	0
480	_hang_lws_file_count	Number of trace files for long waiting sessions	5
481	_hang_lws_file_time_limit	Timespan in seconds for current long waiting session trace file	3600
482	_hang_hiprior_session_attribute_list	Hang Management high priority session attribute list
483	_ipddb_enable	Enable IPD/DB data collection	FALSE
484	_trace_navigation_scope	enabling trace navigation linking	global
485	_max_protocol_support	Max occurrence protocols supported in a process	10000
486	_lm_lms	number of background gcs server processes to start	0
487	gcs_server_processes	number of background gcs server processes to start	0
488	_lm_dynamic_lms	dynamic lms invocation	FALSE
489	_lm_max_lms	max. number of background global cache server processes	0
490	_lm_activate_lms_threshold	threshold value to activate an additional lms	100
491	_lm_lmd_waittime	default wait time for lmd in centiseconds	8
492	_lm_lms_waittime	default wait time for lms in centiseconds	3
493	_lm_procs	number of client processes configured for cluster database	320
494	_lm_lms_priority_dynamic	enable lms priority modification	TRUE
495	_lm_lms_rt_threshold	maximum number of real time lms processes on machine
496	_lm_ress	number of resources configured for cluster database	6000
497	_lm_locks	number of enqueues configured for cluster database	12000
498	_lm_master_weight	master resource weight for this instance	1
499	active_instance_count	number of active instances in the cluster database
500	_active_instance_count	number of active instances in the cluster database

501 _active_standby_fast_reconfiguration if TRUE optimize dlm reconfiguration for active/standby OPS TRUE 502 _lm_enq_rcfg if TRUE enables enqueue reconfiguration TRUE 503 _lm_asm_enq_hashing if TRUE makes ASM use enqueue master hashing for fusion locks TRUE 504 _lm_xids number of transaction IDs configured for cluster database 352 505 _lm_res_part number of resource partition configured for gcs 128 506 _lm_drm_window dynamic remastering bucket window size 0 507 _lm_drm_max_requests dynamic remastering maximum affinity requests processed together 100 508 _lm_drm_xlatch dynamic remastering forced exclusive latches 0 509 _lm_drm_disable disable drm in different level 0 510 _lm_contiguous_res_count number of contiguous blocks that will hash to the same HV bucket 128 511 _lm_num_pt_buckets number of buckets in the object affinity hash table 8192 512 _lm_num_pt_latches number of latches in the object affinity hash table 128 513 _lm_node_join_opt cluster database node join optimization in reconfig FALSE 514 _lm_no_sync skip reconfiguration/drm syncr/synca messaging TRUE 515 _lm_non_fault_tolerant disable cluster database fault-tolerance mode FALSE 516 _lm_cache_res_cleanup percentage of cached resources should be cleanup 25 517 _lm_cache_allocated_res_ratio ratio of cached over allocated resources 50 518 _lm_cache_res_skip_cleanup multiple of iniital res cache below which cleanup is skipped 20 519 _lm_cache_res_cleanup_tries max number of batches of cached resources to free per cleanup 10 520 _lm_cache_res_type cache resource: string of lock types(s) TMHWHVDI 521 _lm_cache_lvl0_cleanup how often to cleanup level 0 cache res (in sec) 0 522 _lm_cache_res_options ges resource cache options 0 523 _ogms_home GMS home directory 524 _lm_sync_timeout Synchronization timeout for DLM reconfiguration steps 163 525 _lm_ticket_active_sendback Flow control ticket active sendback threshold 526 _lm_rcfg_timeout dlm reconfiguration timeout 489 527 _lm_enq_lock_freelist Number of ges enqueue element freelist 528 _lm_enqueue_freelist Number of enqueue freelist 3 529 _lm_dd_interval dd time interval in seconds 10 530 _lm_dd_scan_interval dd scan interval in seconds 5 531 _lm_dd_search_cnt number of dd search per token get 3 532 _lm_dd_max_search_time max dd search time per token 180 533 _lm_dd_maxdump max number of locks to be dumped during dd validation 50 534 _lm_dd_ignore_nodd if TRUE nodeadlockwait/nodeadlockblock options are ignored FALSE 535 _lm_enqueue_blocker_dump_timeout enqueue blocker dump timeout 120 536 _lm_enqueue_blocker_kill_timeout enqueue blocker kill timeout 0 537 _dlmtrace Trace string of global enqueue type(s) 538 _lm_tx_delta TX lock localization delta 16 539 _lm_proc_freeze_timeout reconfiguration: process freeze timeout 70 540 _lm_deferred_msg_timeout deferred message timeout 163 541 _lm_use_new_defmsgtmo_action use new defered msg queue timeout action TRUE 542 _lm_dump_null_lock dump null lock in state dump FALSE 543 _lm_validate_resource_type if TRUE enables resource name validation FALSE 544 _lm_file_affinity mapping between file id and master instance number 545 _lm_file_read_mostly mapping between read-mostly file id and master instance number 546 _lm_enable_aff_benefit_stats enables affinity benefit computations if TRUE FALSE 547 _lm_share_lock_opt if TRUE enables share lock optimization FALSE 548 _lm_res_hash_bucket number of resource hash buckets 0 549 _ges_diagnostics if TRUE enables GES diagnostics TRUE 550 _fair_remote_cvt if TRUE enables fair remote convert FALSE 551 _lm_rcvr_hang_check_frequency receiver hang check frequency in seconds 20 552 _lm_rcvr_hang_allow_time receiver hang allow time in seconds 70 553 _lm_rcvr_hang_kill to kill receiver hang TRUE 554 _lm_rcvr_hang_check_system_load examine system load when check receiver health TRUE 555 _lm_rcvr_hang_systemstate_dump_level systemstate dump level upon receiver hang 0 556 _lm_rcvr_hang_cfio_kill to kill receiver hang at control file IO FALSE 557 _lm_lmon_nowait_latch if TRUE makes lmon get nowait latches with timeout loop TRUE 558 _ges_dd_debug if 1 or higher enables GES deadlock detection debug diagnostics 1 559 _lm_global_posts if TRUE deliver global posts to remote nodes TRUE 560 _rcfg_parallel_replay if TRUE enables parallel replay and cleanup at reconfiguration TRUE 561 _parallel_replay_msg_limit Number of messages for each round of parallel replay 4000 562 _rcfg_parallel_fixwrite if TRUE enables parallel fixwrite at reconfiguration TRUE 563 _parallel_fixwrite_bucket Number of buckets for each round of fix write 1000 564 _rcfg_parallel_verify if TRUE enables parallel verify at reconfiguration TRUE 565 _rcfg_disable_verify if TRUE disables verify at reconfiguration TRUE 566 _drm_parallel_freeze if TRUE enables parallel drm freeze TRUE 567 _dump_rcvr_ipc if TRUE enables IPC dump at instance eviction time TRUE 568 _ges_health_check if greater than 0 enables GES system health check 0 569 _kill_enqueue_blocker if greater than 0 enables killing enqueue blocker 2 570 _lm_psrcfg enable pseudo reconfiguration TRUE 571 _lm_single_inst_affinity_lock enable single instance affinity lock optimization TRUE 572 _lm_preregister_css_restype enqueue type that requires pre-registration to css CF 573 _inquiry_retry_interval if greater than 0 enables inquiry retry after specified interval 3 574 _lm_drm_object_scan enable/disable object scan to force full table scan always TRUE 575 _lm_spare_threads number of spare threads to be created by the GPnP master 0 576 _lm_spare_undo number of spare undo tablespaces to be created by GPnP master 0 577 _lm_rcvinst designated instance to do instance recovery TRUE 578 _lm_use_gcr use GCR module if TRUE TRUE 579 _lm_use_tx_tsn use undo tsn affinity master as TX enqueue master TRUE 580 _lm_local_hp_enq use static file affinity for HP enqueue mastership TRUE 581 _lm_broadcast_res Enable broadcast of highest held mode of resource. disable 582 _lm_broadcast_resname Trace string of resource type(s) AD 583 _gcs_testing GCS testing parameter 0 584 _gcs_pkey_history number of pkey remastering history 4000 585 _ges_designated_master designated master for GES and GCS resources FALSE 586 _lm_lms_spin make lms not sleep FALSE 587 _lm_freeze_kill_time timeout for killing unfrozen processes in rcfg/drm freeze step 30 588 _lm_no_lh_check skip load and health check at decision points FALSE 589 _lm_lhupd_interval load and health update interval 5 590 _lm_high_load_threshold high load threshold parameter 5 591 _lm_high_load_sysload_percentage high watermark system load percentage 90 592 _lm_low_load_percentage low watermark percentage for load threshold 75 593 _lm_drm_hiload_percentage drm high load threshold percentage 200 594 _lm_drm_lowload_percentage drm low load threshold percentage 200 595 _lm_drm_min_interval minimum interval in secs between two consecutive drms 300 596 _lm_drm_batch_time time in seconds to wait to batch drm requests 10 597 _lm_enqueue_timeout enqueue suggested min timeout in seconds 360 598 _lm_better_ddvictim GES better deadlock victim TRUE 599 _lm_msg_batch_size GES batch message size 0 600 _lm_tickets GES messaging tickets 1000 601 _lm_msg_cleanup_interval GES message buffer cleanup interval time 3000 602 _lm_idle_connection_check GES idle connection check TRUE 603 _lm_idle_connection_check_interval GES idle connection check interval time 140 604 _lm_idle_connection_kill GES idle connection kill TRUE 605 _lm_idle_connection_instance_check_callout GES idle connection instance check callout FALSE 606 _lm_send_mode GES send mode auto 607 _lm_postevent_buffer_size postevent buffer size 256 608 _lm_kill_fg_on_timeout GES kill fg on IPC timeout TRUE 609 _lm_send_queue_length GES send queue maximum length 5000 610 _lm_send_queue_batching GES send queue message batching TRUE 611 _lm_process_batching GES implicit process batching for IPC messages TRUE 612 _lm_sq_batch_factor GES send queue minimum batching factor 2 613 _lm_sq_batch_type GES send queue batching mechanism auto 614 _lm_sq_batch_waittick GES send queue batching waittime in tick 3 615 _lm_sendproxy_reserve GES percentage of send proxy reserve of send tickets 25 616 _lm_checksum_batch_msg GES checksum batch messages 0 617 _lm_batch_compression_threshold GES threshold to start compression on batch messages 0 618 _lm_compression_scheme GES compression scheme zlib 619 _lm_validate_pbatch GES process batch validation FALSE 620 _lm_watchpoint_maximum GES number of watchpoints 3 621 _lm_watchpoint_timeout GES maximum time in seconds to keep watchpoint 3600 622 _lm_free_queue_threshold GES free queue threshold 0 623 _abort_recovery_on_join if TRUE, abort recovery on join reconfigurations FALSE 624 _send_ast_to_foreground if TRUE, send ast message to foreground AUTO 625 _reliable_block_sends if TRUE, no side channel on reliable interconnect TRUE 626 _blocks_per_cache_server number of consecutive blocks per global cache server 32 627 _object_reuse_bast if 1 or higher, handle object reuse 2 628 _delta_push_share_blockers enable delta push if greater than the # of share blockers 0 629 _send_close_with_block if TRUE, send close with block even with direct sends TRUE 630 _gcs_fast_reconfig if TRUE, enable fast reconfiguration for gcs locks TRUE 631 _cr_grant_global_role if TRUE, grant lock for CR requests when block is in global role TRUE 632 _cr_grant_local_role turn 3-way CR grants off, make it automatic, or turn it on AUTO 633 _cr_grant_only if TRUE, grant locks when possible and do not send the block FALSE 634 _skip_assume_msg if TRUE, skip assume message for consigns at the master TRUE 635 _gcs_resources number of gcs resources to be allocated 636 _gcs_latches number of gcs resource hash latches to be allocated per LMS process 0 637 _gcs_process_in_recovery if TRUE, process gcs requests during instance recovery TRUE 638 _scatter_gcs_resources if TRUE, gcs resources are scattered uniformly across sub pools FALSE 639 _gcs_res_per_bucket number of gcs resource per hash bucket 4 640 _gcs_shadow_locks number of pcm shadow locks to be allocated 641 _scatter_gcs_shadows if TRUE, gcs shadows are scattered uniformly across sub pools FALSE 642 _gcs_disable_remote_handles disable remote client/shadow handles FALSE 643 _gcs_disable_skip_close_remastering if TRUE, disable skip close optimization in remastering FALSE 644 _side_channel_batch_size number of messages to batch in a side channel message (DFS) 200 645 _side_channel_batch_timeout timeout before shipping out the batched side channelmessages in seconds 6 646 _side_channel_batch_timeout_ms timeout before shipping out the batched side channelmessages in milliseconds 500 647 _broadcast_scn_wait_timeout broadcast-on-commit scn wait timeout in centiseconds 10 648 _hb_redo_msg_interval BOC HB redo message interval in ms 100 649 _master_direct_sends direct sends for messages from master (DFS) 31 650 _cgs_send_timeout CGS send timeout value 300 651 _imr_active Activate Instance Membership Recovery feature TRUE 652 _imr_max_reconfig_delay Maximum Reconfiguration delay (seconds) 75 653 _imr_splitbrain_res_wait Maximum wait for split-brain resolution (seconds) 0 654 _imr_disk_voting_interval Maximum wait for IMR disk voting (seconds) 3 655 _imr_systemload_check Perform the system load check during IMR TRUE 656 _imr_device_type Type of device to be used by IMR controlfile 657 _imr_highload_threshold IMR system highload threshold 658 _imr_evicted_member_kill IMR issue evicted member kill after a wait TRUE 659 _imr_evicted_member_kill_wait IMR evicted member kill wait time in seconds 20 660 _imr_avoid_double_voting Avoid device voting for CSS reconfig during IMR TRUE 661 _imr_diskvote_implementation IMR disk voting implementation method auto 662 _imr_extra_reconfig_wait Extra reconfiguration wait in seconds 10 663 _imr_controlfile_access_wait_time IMR controlfile access wait time in seconds 10 664 _cluster_library cluster library selection clss 665 _cgs_reconfig_timeout CGS reconfiguration timeout interval 0 666 _cgs_node_kill_escalation CGS node kill escalation to CSS TRUE 667 _cgs_node_kill_escalation_wait CGS wait time to escalate node kill to CSS in seconds 0 668 _cgs_zombie_member_kill_wait CGS zombie member kill wait time in seconds 20 669 _cgs_reconfig_extra_wait CGS reconfiguration extra wait time for CSS in seconds 3 670 _cgs_health_check_in_reconfig CGS health check during reconfiguration TRUE 671 _cgs_tickets CGS messaging tickets 1000 672 _cgs_dball_group_registration CGS DBALL group registration type local 673 _cgs_dbgroup_poll_time CGS DB group polling interval in milli-seconds 600 674 _cgs_allgroup_poll_time CGS DBALL group polling interval in milli-seconds 20000 675 _lm_dynamic_load dynamic load adjustment TRUE 676 _notify_crs notify cluster ready services of startup and shutdown TRUE 677 _kill_diagnostics_timeout timeout delay in seconds before killing enqueue blocker 60 678 _ges_diagnostics_asm_dump_level systemstate level on global enqueue diagnostics blocked by ASM 11 679 _ges_num_blockers_to_kill number of blockers to be killed for hang resolution 1 680 _lm_hb_callstack_collect_time hb diagnostic call stack collection time in seconds 5 681 _lm_hb_disable_check_list list of process names to be disabled in heartbeat check none 682 _hang_statistics_collection_interval Hang Management statistics collection interval in seconds 15 683 _hang_statistics_collection_ma_alpha Hang Management statistics collection moving average alpha 30 684 _hang_statistics_high_io_percentage_threshold Hang Management statistics high IO percentage threshold 45 685 _gcr_enable_high_cpu_kill if TRUE, GCR may kill foregrounds under high load FALSE 686 _gcr_enable_high_cpu_rm if TRUE, GCR may enable a RM plan under high load FALSE 687 _gcr_enable_high_cpu_rt if TRUE, GCR may boost bg priority under high load FALSE 688 _gcr_high_cpu_threshold minimum amount of CPU process must consume to be kill target 10 689 _gcr_use_css if FALSE, GCR wont register with CSS nor use any CSS feature TRUE 690 _lm_rac_spare_p1 rac parameter p1 0 691 _lm_rac_spare_p2 rac parameter p2 0 692 _lm_rac_spare_p3 rac parameter p3 0 693 _lm_rac_spare_p4 rac parameter p4 0 694 _lm_rac_spare_p5 rac parameter p5 0 695 _lm_rac_spare_p6 rac parameter p6 696 _lm_rac_spare_p7 rac parameter p7 697 _lm_rac_spare_p8 rac parameter p8 698 _lm_rac_spare_p9 rac parameter p9 699 _lm_rac_spare_p10 rac parameter p10 700 _lm_rac_spare_dp1 rac parameter dp1 0 701 _lm_rac_spare_dp2 rac parameter dp2 0 702 _lm_rac_spare_dp3 rac parameter dp3 0 703 _lm_rac_spare_dp4 rac parameter dp4 0 704 _lm_rac_spare_dp5 rac parameter dp5 0 705 _lm_rac_spare_dp6 rac parameter dp6 706 _lm_rac_spare_dp7 rac parameter dp7 707 _lm_rac_spare_dp8 rac parameter dp8 708 _lm_rac_spare_dp9 rac parameter dp9 709 _lm_rac_spare_dp10 rac parameter dp10 710 sga_target Target size of SGA 1073741824 711 __sga_target Actual size of SGA 1073741824 712 memory_target Target size of Oracle SGA and PGA memory 0 713 memory_max_target Max size for Memory Target 0 714 _disable_streams_pool_auto_tuning disable streams pool auto tuning FALSE 715 _memory_management_tracing trace memory management activity 0 716 _memory_mgmt_immreq_timeout time in seconds to time out immediate mode request 150 717 _memory_checkinuse_timeintv check inuse time interval 30 718 _memory_mgmt_fail_immreq always fail immediate mode request FALSE 719 _memory_sanity_check partial granule sanity check 0 720 _init_granule_interval number of granules to process for deferred cache 10 721 _shared_pool_max_size shared pool maximum size when auto SGA enabled 0 722 _shared_pool_minsize_on shared pool minimum size when auto SGA enabled FALSE 723 _streams_pool_max_size streams pool maximum size when auto SGA enabled 0 724 _simulate_mem_transfer simulate auto memory sga/pga transfers FALSE 725 _memory_nocancel_defsgareq do not cancel deferred sga reqs with auto-memory FALSE 726 _memory_imm_mode_without_autosga Allow immediate mode without sga/memory target TRUE 727 _memory_broker_stat_interval memory broker statistics gathering interval for auto sga 30 728 _automemory_broker_interval memory broker statistics gathering interval for auto memory 3 729 _memory_broker_shrink_heaps memory broker allow policy to shrink shared pool 15 730 _memory_broker_shrink_java_heaps memory broker allow policy to shrink java pool 900 731 _memory_broker_shrink_streams_pool memory broker allow policy to shrink streams pool 900 732 _memory_broker_shrink_timeout memory broker policy to timeout shrink shared/java pool 60000000 733 _memory_broker_log_stat_entries memory broker num stat entries 5 734 _memory_initial_sga_split_perc Initial default sga target percentage with memory target 60 735 _memory_broker_marginal_utility_sp Marginal Utility threshold pct for sp 7 736 _memory_broker_marginal_utility_bc Marginal Utility threshold pct for bc 12 737 _disable_latch_free_SCN_writes_via_32cas disable latch-free SCN writes using 32-bit compare & swap FALSE 738 _disable_latch_free_SCN_writes_via_64cas disable latch-free SCN writes using 64-bit compare & swap FALSE 739 control_files control file names list +DATA/orclasm/controlfile/current.256.929201173, +FRA/orclasm/controlfile/current.256.850260253 740 _controlfile_enqueue_timeout control file enqueue timeout in seconds 900 741 _controlfile_enqueue_holding_time control file enqueue max holding time in seconds 120 742 _controlfile_enqueue_holding_time_tracking_size control file enqueue holding time tracking size 10 743 _controlfile_update_check controlfile update sanity check OFF 744 _controlfile_enqueue_dump dump the system states after controlfile enqueue timeout FALSE 745 _controlfile_block_size control file block size in bytes 0 746 _controlfile_section_init_size control file initial section size 747 _controlfile_section_max_expand control file max expansion rate 748 db_file_name_convert datafile name convert patterns and strings for standby/clone db 749 log_file_name_convert logfile name convert patterns and strings for standby/clone db 750 control_file_record_keep_time control file record keep time in days 14 751 _kill_controlfile_enqueue_blocker enable killing controlfile enqueue blocker on timeout TRUE 752 _controlfile_backup_copy_check enable check of the copied blocks during controlfile backup copy TRUE 753 db_block_buffers Number of database blocks cached in memory 0 754 _db_block_buffers Number of database blocks cached in memory: hidden parameter 41391 755 _db_block_cache_protect protect database blocks (true only when debugging) FALSE 756 _db_block_cache_protect_internal protect database blocks (for strictly internal use only) 0 757 db_block_checksum store checksum in db blocks and check during reads TRUE 758 db_ultra_safe Sets defaults for other parameters that control protection levels OFF 759 db_block_size Size of database block in bytes 8192 760 _dbwr_tracing Enable dbwriter tracing 0 761 _tsenc_tracing Enable TS encryption tracing 0 762 _disable_multiple_block_sizes disable multiple block size support (for debugging) FALSE 763 _db_fast_obj_truncate enable fast object truncate TRUE 764 _db_fast_obj_ckpt enable fast object checkpoint TRUE 765 _enable_obj_queues enable object queues TRUE 766 _db_obj_enable_ksr enable ksr in object checkpoint/reuse TRUE 767 _small_table_threshold lower threshold level of table size for direct reads 827 768 _very_large_object_threshold upper threshold level of object size for direct reads 500 769 _db_block_cache_num_umap number of unmapped buffers (for tracking swap calls on blocks) 0 770 _dbwr_async_io Enable dbwriter asynchronous writes TRUE 771 _recovery_percentage recovery buffer cache percentage 50 772 _db_lost_write_checking Enable scn based lost write detection mechanism 2 773 _db_lost_write_tracing Enable _db_lost_write_checking tracing FALSE 774 __db_cache_size Actual size of DEFAULT buffer pool for standard block size buffers 352321536 775 db_cache_size Size of DEFAULT buffer pool for standard block size buffers 301989888 776 _db_block_numa Number of NUMA nodes 1 777 db_2k_cache_size Size of cache for 2K buffers 0 778 db_4k_cache_size Size of cache for 4K buffers 0 779 db_8k_cache_size Size of cache for 8K buffers 0 780 db_16k_cache_size Size of cache for 16K buffers 0 781 db_32k_cache_size Size of cache for 32K buffers 0 782 db_keep_cache_size Size of KEEP buffer pool for standard block size buffers 0 783 db_recycle_cache_size Size of RECYCLE buffer pool for standard block size buffers 0 784 __shared_io_pool_size Actual size of shared IO pool 0 785 _shared_io_pool_size Size of shared IO pool 0 786 _db_hot_block_tracking track hot blocks for hash latch contention FALSE 787 _sga_clear_dump Allow dumping encrypted blocks in clear for debugging FALSE 788 _clear_buffer_before_reuse Always zero-out buffer before reuse for security FALSE 789 _db_block_bad_write_check enable bad write checks FALSE 790 _db_block_lru_latches number of lru latches 16 791 _db_percpu_create_cachesize size of cache created per cpu in deferred cache create 2 792 _db_initial_cachesize_create_mb size of cache created at startup 256 793 _db_num_evict_waitevents number of evict wait events 64 794 _db_todefer_cache_create buffer cache deferred create TRUE 795 db_writer_processes number of background database writer processes to start 1 796 _db_block_known_clean_pct Initial Percentage of buffers to maintain known clean 2 797 _db_block_max_scan_pct Percentage of buffers to inspect when looking for free 40 798 _db_large_dirty_queue Number of buffers which force dirty queue to be written 25 799 _db_writer_max_writes Max number of outstanding DB Writer IOs 0

800 _db_writer_chunk_writes Number of writes DBWR should wait for 0 801 _db_block_med_priority_batch_size Fraction of writes for medium priority reasons 0 802 _db_block_hi_priority_batch_size Fraction of writes for high priority reasons 0 803 _db_writer_histogram_statistics maintain dbwr histogram statistics in x$kcbbhs FALSE 804 _dbwr_scan_interval dbwriter scan interval 300 805 _db_writer_flush_imu If FALSE, DBWR will not downgrade IMU txns for AGING TRUE 806 _db_writer_coalesce_write_limit Limit on size of coalesced write 131072 807 _db_writer_coalesce_area_size Size of memory allocated to dbwriter for coalescing writes 3522560 808 _db_writer_nomemcopy_coalesce Enable DBWR no-memcopy coalescing FALSE 809 _selftune_checkpoint_write_pct Percentage of total physical i/os for self-tune ckpt 3 810 _db_writer_verify_writes Enable lost write detection mechanism FALSE 811 _db_block_prefetch_quota Prefetch quota as a percent of cache size 10 812 _db_block_prefetch_limit Prefetch limit in blocks 0 813 _db_block_prefetch_override Prefetch force override in blocks 0 814 _rbr_ckpt_tracing Enable reuse block range checkpoint tracing 0 815 _db_cache_pre_warm Buffer Cache Pre-Warm Enabled : hidden parameter TRUE 816 buffer_pool_keep Number of database blocks/latches in keep buffer pool 817 buffer_pool_recycle Number of database blocks/latches in recycle buffer pool 818 _db_percent_hot_default Percent of default buffer pool considered hot 50 819 _db_percent_hot_keep Percent of keep buffer pool considered hot 0 820 _db_percent_hot_recycle Percent of recycle buffer pool considered hot 0 821 _db_aging_hot_criteria Touch count which sends a buffer to head of replacement list 2 822 _db_aging_stay_count Touch count set when buffer moved to head of replacement list 0 823 _db_aging_cool_count Touch count set when buffer cooled 1 824 _db_aging_touch_time Touch count which sends a buffer to head of replacement list 3 825 _db_aging_freeze_cr Make CR buffers always be too cold to keep in cache FALSE 826 _db_block_hash_buckets Number of database block hash buckets 131072 827 _db_block_hash_latches Number of database block hash latches 4096 828 _db_blocks_per_hash_latch Number of blocks per hash latch 829 _db_handles_cached Buffer handles cached each process 8 830 _db_handles System-wide simultaneous buffer operations 4000 831 _wait_for_sync wait for sync on commit MUST BE ALWAYS TRUE TRUE 832 _db_block_vlm_check check of rvlm mapping leaks (for debugging) FALSE 833 _db_block_vlm_leak_threshold Threshold for allowable vlm leaks 3 834 _db_block_cache_clone Always clone data blocks on get (for debugging) FALSE 835 _db_block_trace_protect trace buffer protect calls FALSE 836 _db_cache_miss_check_les check LEs after cache miss FALSE 837 _db_block_max_cr_dba Maximum Allowed Number of CR buffers per dba 6 838 _write_clones write clones flag 3 839 _check_block_after_checksum perform block check after checksum if both are turned on TRUE 840 _trace_pin_time trace how long a current pin is held 0 841 _db_fast_obj_check enable fast object drop sanity check FALSE 842 _db_block_temp_redo generate redo for temp blocks FALSE 843 _db_block_adjchk_level adjacent cache buffer check level 7 844 _db_block_adjcheck adjacent cache buffer checks - low blkchk overwrite parameter TRUE 845 _db_required_percent_fairshare_usage percent of fairshare a processor group should always use 10 846 _db_block_check_objtyp check objd and typ on cache disk read TRUE 847 _db_block_do_full_mbreads do full block read even if some blocks are in cache FALSE 848 _shared_iop_max_size maximum shared io pool size 536870912 849 _shared_io_pool_buf_size Shared IO pool buffer size 1048576 850 _siop_flashback_scandepth Shared IO pool flashback io completion scan depth 20 851 _shared_io_pool_debug_trc trace kcbi debug info to tracefile 0 852 _shared_io_set_value shared io pool size set internal value - overwrite zero user size FALSE 853 _trace_buffer_wait_timeouts trace buffer busy wait timeouts 0 854 _buffer_busy_wait_timeout buffer busy wait time in centiseconds 100 855 _db_cache_crx_check check for costly crx examination functions FALSE 856 _db_cache_mman_latch_check check for wait latch get under MMAN ops in kcb FALSE 857 _db_block_cache_history buffer header tracing (non-zero only when debugging) 0 858 _db_block_cache_history_level buffer header tracing level 2 859 _db_block_header_guard_level number of extra buffer headers to use as guard pages 0 860 _db_block_table_scan_buffer_size Size of shared table scan read buffer 4194304 861 _db_cache_process_cr_pin_max maximum number of cr pins a process may have 862 _db_block_corruption_recovery_threshold threshold number of block recovery attempts 5 863 _db_block_chunkify_ncmbr chunkify noncontig multi block reads FALSE 864 _db_cache_wait_debug trace new kslwaits 0 865 _fastpin_enable enable reference count based fast pins 229847041 866 _db_prefetch_histogram_statistics maintain prefetch histogram statistics in x$kcbprfhs FALSE 867 _flush_undo_after_tx_recovery if TRUE, flush undo buffers after TX recovery TRUE 868 _spare_test_parameter Spare test parameter 0 869 db_flash_cache_file flash cache file for default block size 870 db_flash_cache_size flash cache size for db_flash_cache_file 0 871 _db_2k_flash_cache_file flash cache file for 2k block size 872 _db_2k_flash_cache_size flash cache size for _db_2k_flash_cache_file 0 873 _db_4k_flash_cache_file flash cache file for 4k block size 874 _db_4k_flash_cache_size flash cache size for _db_4k_flash_cache_file 0 875 _db_8k_flash_cache_file flash cache file for 8k block size 876 _db_8k_flash_cache_size flash cache size for _db_8k_flash_cache_file 0 877 _db_16k_flash_cache_file flash cache file for 16k block size 878 _db_16k_flash_cache_size flash cache size for _db_16k_flash_cache_file 0 879 _db_32k_flash_cache_file flash cache file for 32k block size 880 _db_32k_flash_cache_size flash cache size for _db_32k_flash_cache_file 0 881 _db_flash_cache_keep_limit Flash cache keep buffer upper limit in percentage 229771856 882 _db_flash_cache_write_limit Flash cache write buffer upper limit in percentage 1 883 _db_flash_cache_force_replenish_limit Flash cache force replenish lower limit in buffers 8 884 _db_l2_tracing flash cache debug tracing 0 885 _db_dump_from_disk_noefc dump reading buffer contents 0 886 _numa_buffer_cache_stats Configure NUMA buffer cache stats 0 887 _db_cache_block_read_stack_trace dump short call stack for block reads 0 888 db_cache_advice Buffer cache sizing advisory ON 889 _db_cache_advice_sample_factor cache advisory sampling factor 4 890 _db_cache_advice_max_size_factor cache advisory maximum multiple of current size to similate 2 891 _db_cache_advice_sanity_check cache simulation sanity check FALSE 892 _db_mttr_advice MTTR advisory ON 893 _db_mttr_sim_target MTTR simulation targets 894 _db_mttr_sample_factor MTTR simulation sampling factor 64 895 _db_mttr_partitions number of partitions for MTTR advisory 0 896 _db_mttr_sim_trace_size MTTR simulation trace size 256 897 _db_mttr_trace_to_alert dump trace entries to alert file FALSE 898 _obj_ckpt_tracing Enable object checkpoint tracing 0 899 _immediate_commit_propagation if TRUE, propagate commit SCN immediately TRUE 900 _minimum_giga_scn Minimum SCN to start with in 2^30 units 0 901 _max_reasonable_scn_rate Max reasonable SCN rate 32768 902 _reasonable_scn_offset_seconds Reasonable SCN offset seconds 0 903 compatible Database will be completely compatible with this software version 11.2.0.3.0 904 _redo_compatibility_check general and redo/undo compatibility sanity check FALSE 905 _db_block_check_for_debug Check more and dump block before image for debugging FALSE 906 _db_always_check_system_ts Always perform block check and checksum for System tablespace TRUE 907 _log_checkpoint_recovery_check # redo blocks to verify after checkpoint 0 908 _two_pass enable two-pass thread recovery TRUE 909 _recovery_verify_writes enable thread recovery write verify FALSE 910 _disable_recovery_read_skip Disable the read optimization during media recovery FALSE 911 _redo_transport_stream_writes Stream network writes? TRUE 912 _redo_transport_stream_test test stream connection? TRUE 913 _redo_transport_vio_size_req VIO size requirement 4294967294 914 log_archive_dest_1 archival destination #1 text string 915 log_archive_dest_2 archival destination #2 text string 916 log_archive_dest_3 archival destination #3 text string 917 log_archive_dest_4 archival destination #4 text string 918 log_archive_dest_5 archival destination #5 text string 919 log_archive_dest_6 archival destination #6 text string 920 log_archive_dest_7 archival destination #7 text string 921 log_archive_dest_8 archival destination #8 text string 922 log_archive_dest_9 archival destination #9 text string 923 log_archive_dest_10 archival destination #10 text string 924 log_archive_dest_11 archival destination #11 text string 925 log_archive_dest_12 archival destination #12 text string 926 log_archive_dest_13 archival destination #13 text string 927 log_archive_dest_14 archival destination #14 text string 928 log_archive_dest_15 archival destination #15 text string 929 log_archive_dest_16 archival destination #16 text string 930 log_archive_dest_17 archival destination #17 text string 931 log_archive_dest_18 archival destination #18 text string 932 log_archive_dest_19 archival destination #19 text string 933 log_archive_dest_20 archival destination #20 text string 934 log_archive_dest_21 archival destination #21 text string 935 log_archive_dest_22 archival destination #22 text string 936 log_archive_dest_23 archival destination #23 text string 937 log_archive_dest_24 archival destination #24 text string 938 log_archive_dest_25 archival destination #25 text string 939 log_archive_dest_26 archival destination #26 text string 940 log_archive_dest_27 archival destination #27 text string 941 log_archive_dest_28 archival destination #28 text string 942 log_archive_dest_29 archival destination #29 text string 943 log_archive_dest_30 archival destination #30 text string 944 log_archive_dest_31 archival destination #31 text string 945 log_archive_dest_state_1 archival destination #1 state text string enable 946 log_archive_dest_state_2 archival destination #2 state text string enable 947 log_archive_dest_state_3 archival destination #3 state text string enable 948 log_archive_dest_state_4 archival destination #4 state text string enable 949 log_archive_dest_state_5 archival destination #5 state text string enable 950 log_archive_dest_state_6 archival destination #6 state text string enable 951 log_archive_dest_state_7 archival destination #7 state text string enable 952 log_archive_dest_state_8 archival destination #8 state text string enable 953 log_archive_dest_state_9 archival destination #9 state text string enable 954 log_archive_dest_state_10 archival destination #10 state text string enable 955 log_archive_dest_state_11 archival destination #11 state text string enable 956 log_archive_dest_state_12 archival destination #12 state text string enable 957 log_archive_dest_state_13 archival destination #13 state text string enable 958 log_archive_dest_state_14 archival destination #14 state text string enable 959 log_archive_dest_state_15 archival destination #15 state text string enable 960 log_archive_dest_state_16 archival destination #16 state text string enable 961 log_archive_dest_state_17 archival destination #17 state text string enable 962 log_archive_dest_state_18 archival destination #18 state text string enable 963 log_archive_dest_state_19 archival destination #19 state text string enable 964 log_archive_dest_state_20 archival destination #20 state text string enable 965 log_archive_dest_state_21 archival destination #21 state text string enable 966 log_archive_dest_state_22 archival destination #22 state text string enable 967 log_archive_dest_state_23 archival destination #23 state text string enable 968 log_archive_dest_state_24 archival destination #24 state text string enable 969 log_archive_dest_state_25 archival destination #25 state text string enable 970 log_archive_dest_state_26 archival destination #26 state text string enable 971 log_archive_dest_state_27 archival destination #27 state text string enable 972 log_archive_dest_state_28 archival destination #28 state text string enable 973 log_archive_dest_state_29 archival destination #29 state text string enable 974 log_archive_dest_state_30 archival destination #30 state text string enable 975 log_archive_dest_state_31 archival destination #31 state text string enable 976 log_archive_start start archival process on SGA initialization FALSE 977 log_archive_dest archival destination text string 978 log_archive_duplex_dest duplex archival destination text string 979 log_archive_min_succeed_dest minimum number of archive destinations that must succeed 1 980 standby_archive_dest standby database archivelog destination text string ?/dbs/arch 981 _arch_sim_mode Change behavior of local archiving 0 982 _dg_corrupt_redo_log Corrupt redo log validation during archivals 0 983 _local_arc_assert_on_wait Assert whenever local ORL arch waits for space FALSE 984 _defer_eor_orl_arch_for_so defer EOR ORL archival for switchover FALSE 985 fal_client FAL client 986 fal_server FAL server list 987 _enable_ffw FAL FORWARDING TRUE 988 _force_rcv_info_ping Force recovery info ping to stdby 0 989 log_archive_trace Establish archivelog operation tracing level 0 990 _log_archive_trace_pids log archive trace pids parameter 991 _flush_redo_to_standby Flush redo to standby test event parameter 0 992 _redo_transport_sanity_check redo transport sanity check bit mask 0 993 _dg_cf_check_timer Data Guard controlfile check timer 15 994 _bypass_srl_for_so_eor bypass SRL for S/O EOR logs FALSE 995 _rta_sync_wait_timeout RTA sync wait timeout 10 996 _log_archive_prot_auto_demote log archive protection auto demotion FALSE 997 _serialize_lgwr_sync_io Serialize LGWR SYNC local and remote io FALSE 998 _mgd_rcv_handle_orphan_datafiles Managed recovery handle orphan datafile situation FALSE 999 _real_time_apply_sim Simulation value with real time apply 0 1000 _defer_rcv_during_sw_to_sby Defer recovery during switchover to standby FALSE 1001 _skip_trstamp_check Skip terminal recovery stamp check FALSE 1002 _set_mgd_recovery_state set mgd recovery state to new value 0 1003 _show_mgd_recovery_state Show internal managed recovery state FALSE 1004 _log_archive_security_enabled log archive security enabled TRUE 1005 log_archive_config log archive config parameter 1006 _enable_sb_detection Split Brain Detection TRUE 1007 _log_archive_buffers Number of buffers to allocate for archiving 10 1008 _redo_transport_compress_all Is ASYNC LNS compression allowed? TRUE 1009 _log_archive_callout archival callout 1010 log_archive_local_first Establish EXPEDITE attribute default value TRUE 1011 _rtc_infeasible_threshold Redo Transport Compression infeasible threshold 25 1012 log_archive_format archival destination format %t_%s_%r.dbf 1013 _disable_thread_snapshot Thread snapshot TRUE 1014 _log_archive_avoid_memcpy log archive avoid memcpy TRUE 1015 _log_archive_strong_auth log archive security strong auth TRUE 1016 redo_transport_user Data Guard transport user when using password file 1017 _lgwr_ns_nl_min Variable to simulate network latency or buffer threshold 500 1018 _lgwr_ns_nl_max Variable to simulate network latency or buffer threshold 1000 1019 _redo_transport_stall_time I/O stall time before terminating redo transport process 360 1020 _redo_transport_stall_time_long long I/O stall time before terminating redo transport process 3600 1021 log_archive_max_processes maximum number of active ARCH processes 4 1022 _max_lns_shutdown_archival_time Maximum time spent by LNS to archive last log during shutdown 30 1023 _ta_lns_wait_for_arch_log LNS Wait time for arhcived version of online log 20 1024 _lgwr_max_ns_wt Maximum wait time for lgwr to allow NetServer to progress 1 1025 _ns_max_flush_wt Flush wait time for NetServer to flush oustanding writes 1 1026 _ns_max_send_delay Data Loss Time Bound for NetServer 15 1027 _lgwr_ta_sim_err Variable to simulate errors lgwr true async 0 1028 _lgwr_ns_sim_err Variable to simulate errors lgwrns 0 1029 _log_archive_network_redo_size Log archive network redo buffer size used by ARCH 10 1030 _switchover_to_standby_switch_log Switchover to standby switches log for open redo threads TRUE 1031 _max_async_wait_for_catch_up Switchover wait time for async LNS to catch up in seconds 20 1032 _lgwr_delay_write LGWR write delay for debugging FALSE 1033 _enable_redo_global_post LGWR post globally on write FALSE 1034 log_buffer redo circular buffer size 8478720 1035 _log_io_size automatically initiate log write if this many redo blocks in buffer 0 1036 _log_event_queues number of the log writer event queues 0 1037 log_checkpoint_interval # redo blocks checkpoint threshold 0 1038 log_checkpoint_timeout Maximum time interval between checkpoints in seconds 1800 1039 _log_switch_timeout Maximum number of seconds redos in the current log could span 0 1040 archive_lag_target Maximum number of seconds of redos the standby could lose 0 1041 _log_buffers_debug debug redo buffers (slows things down) FALSE 1042 _log_buffers_corrupt corrupt redo buffers before write FALSE 1043 _log_simultaneous_copies number of simultaneous copies into redo buffer(# of copy latches) 4 1044 _log_parallelism_max Maximum number of log buffer strands 2 1045 _log_parallelism_dynamic Enable dynamic strands TRUE 1046 _log_private_parallelism_mul Active sessions multiplier to deduce number of private strands 10 1047 _log_private_mul Private strand multiplier for log space preallocation 5 1048 _lightweight_hdrs Lightweight headers for redo TRUE 1049 _redo_read_from_memory Enable reading redo from in-memory log buffer TRUE 1050 _desired_readmem_rate The desired percentage of redo reading from memory 90 1051 _log_read_buffer_size buffer size for reading log files 8 1052 _validate_readmem_redo validate redo blocks read from in-memory log buffer OFF 1053 _mirror_redo_buffers Save buffers for debugging redo corruptions FALSE 1054 _fg_log_checksum Checksum redo in foreground process TRUE 1055 _verify_fg_log_checksum LGWR verifies redo checksums generated by foreground processes FALSE 1056 _disable_logging Disable logging FALSE 1057 _log_buffer_coalesce Coalescing log buffers for log writes FALSE 1058 _fg_sync_sleep_usecs Log file sync via usleep 0 1059 _log_file_sync_timeout Log file sync timeout (centiseconds) 10 1060 _use_adaptive_log_file_sync Adaptively switch between post/wait and polling TRUE 1061 _adaptive_log_file_sync_use_polling_threshold Ratio of redo synch time to expected poll time as a percentage 200 1062 _adaptive_log_file_sync_use_postwait_threshold Percentage of foreground load from when post/wait was last used 50 1063 _adaptive_log_file_sync_sched_delay_window Window (in seconds) for measuring average scheduling delay 60 1064 _adaptive_log_file_sync_poll_aggressiveness Polling interval selection bias (conservative=0, aggressive=100) 0 1065 _adaptive_log_file_sync_high_switch_freq_threshold Threshold for frequent log file sync mode switches (per minute) 3 1066 _max_pending_scn_bcasts maximum number of pending SCN broadcasts 8 1067 _lgwr_posts_for_pending_bcasts LGWR posts commit waiters for pending broadcasts FALSE 1068 _long_log_write_warning_threshold threshold for long log write warning messages in ms 500 1069 _long_bcast_ack_warning_threshold threshold for long bcast ack warning messages in ms 500 1070 _enable_flash_logging Enable Exadata Smart Flash Logging TRUE 1071 db_files max allowable # db files 200 1072 db_file_multiblock_read_count db block to be read each IO 53 1073 _db_file_exec_read_count multiblock read count for regular clients 53 1074 _db_file_optimizer_read_count multiblock read count for regular clients 8 1075 _db_file_noncontig_mblock_read_count number of noncontiguous db blocks to be prefetched 11 1076 read_only_open_delayed if TRUE delay opening of read only files until first access FALSE 1077 cluster_database if TRUE startup in cluster database mode FALSE 1078 parallel_server if TRUE startup in parallel server mode FALSE 1079 parallel_server_instances number of instances to use for sizing OPS SGA structures 1 1080 cluster_database_instances number of instances to use for sizing cluster db SGA structures 1 1081 db_create_file_dest default database location +DATA 1082 db_create_online_log_dest_1 online log/controlfile destination #1 1083 db_create_online_log_dest_2 online log/controlfile destination #2 1084 db_create_online_log_dest_3 online log/controlfile destination #3 1085 db_create_online_log_dest_4 online log/controlfile destination #4 1086 db_create_online_log_dest_5 online log/controlfile destination #5 1087 db_recovery_file_dest default database recovery file location +FRA 1088 db_recovery_file_dest_size database recovery files size limit 8589934592 1089 _db_recovery_temporal_file_dest default database recovery temporal file location 1090 standby_file_management if auto then files are created/dropped automatically on standby MANUAL 1091 _standby_switchover_timeout Number of secords for standby switchover enqueue timeout 120 1092 _hard_protection if TRUE enable H.A.R.D specific format changes FALSE 1093 _datafile_cow Use copy on write snapshot for the renamed file FALSE 1094 _max_filestat_tries maximum number of file stat tries 10 1095 _allow_error_simulation Allow error simulation for testing FALSE 1096 _db_file_format_io_buffers Block formatting I/O buf count 4 1097 _disable_read_only_open_dict_check Disable read-only open dictionary check FALSE 1098 _standby_flush_mode standby flush mode SLFLUSH 1099 _causal_standby_wait_timeout Causal standby wait timeout 20 1100 _gc_use_cr if TRUE, allow CR pins on PI and WRITING buffers TRUE 1101 _gc_undo_affinity if TRUE, enable dynamic undo affinity TRUE 1102 _gc_disable_s_lock_brr_ping_check if TRUE, disable S lock BRR ping check for lost write protect TRUE 1103 _gc_policy_time how often to make object policy decisions in minutes 10 1104 _gc_policy_minimum dynamic object policy minimum activity per minute 1500 1105 _gc_affinity_ratio dynamic object affinity ratio 50 1106 _gc_transfer_ratio dynamic object read-mostly transfer ratio 2 1107 _recovery_asserts if TRUE, enable expensive integrity checks FALSE 1108 _gc_integrity_checks set the integrity check level 1 1109 _gc_vector_read if TRUE, vector read current buffers TRUE 1110 _gc_element_percent global cache element percent 110 1111 _gc_latches number of latches per LMS process 8 1112 _gc_statistics if TRUE, kcl statistics are maintained TRUE 1113 _gc_keep_recovery_buffers if TRUE, make single instance crash recovery buffers current TRUE 1114 _recovery_read_limit number of recovery reads which can be outstanding 1024 1115 _gc_defer_time how long to defer pings for hot buffers in milliseconds 1 1116 _gc_defer_ping_index_only if TRUE, restrict deferred ping to index blocks only TRUE 1117 _kcl_debug if TRUE, record le history TRUE 1118 _kcl_index_split if TRUE, reject pings on blocks in middle of a split TRUE 1119 _kcl_commit if TRUE, call kjbcommit TRUE 1120 _fairness_threshold number of times to CR serve before downgrading lock 2 1121 _interconnect_checksum if TRUE, checksum interconnect blocks TRUE 1122 _cr_server_log_flush if TRUE, flush redo log before serving a CR buffer TRUE 1123 _gc_log_flush if TRUE, flush redo log before a current block transfer TRUE 1124 _async_recovery_reads if TRUE, issue recovery reads asynchronously TRUE 1125 _async_recovery_claims if TRUE, issue recovery claims asynchronously TRUE 1126 _avoid_prepare if TRUE, do not prepare a buffer when the master is local TRUE 1127 _bwr_for_flushed_pi if TRUE, generate a BWR for a flushed PI TRUE 1128 _send_requests_to_pi if TRUE, try to send CR requests to PI buffers TRUE 1129 _kcl_conservative_log_flush if TRUE, conservatively log flush before CR serving FALSE 1130 _gc_check_bscn if TRUE, check for stale blocks TRUE 1131 _gc_global_cpu global cpu checks TRUE 1132 _gc_global_lru turn global lru off, make it automatic, or turn it on AUTO 1133 _gc_global_lru_touch_count global lru touch count 5 1134 _gc_global_lru_touch_time global lru touch time in seconds 60 1135 _gc_coalesce_recovery_reads if TRUE, coalesce recovery reads TRUE 1136 _gc_maximum_bids maximum number of bids which can be prepared 0 1137 _gc_async_memcpy if TRUE, use async memcpy FALSE 1138 _gc_global_checkpoint_scn if TRUE, enable global checkpoint scn TRUE 1139 _gc_undo_block_disk_reads if TRUE, enable undo block disk reads TRUE 1140 _gc_long_query_threshold threshold for long running query 0 1141 _gc_affinity_locking if TRUE, enable object affinity TRUE 1142 _gc_affinity_locks if TRUE, get affinity locks TRUE 1143 _gc_read_mostly_locking if TRUE, enable read-mostly locking TRUE 1144 _gc_persistent_read_mostly if TRUE, enable persistent read-mostly locking TRUE 1145 _gc_bypass_readers if TRUE, modifications bypass readers TRUE 1146 _gc_max_downcvt maximum downconverts to process at one time 256 1147 _gc_tsn_undo_affinity if TRUE, use TSN undo affinity TRUE 1148 _gc_fusion_compression compress fusion blocks if there is free space 1024 1149 _gc_down_convert_after_keep if TRUE, down-convert lock after recovery TRUE 1150 _gc_delta_push_objects objects which use delta push 0 1151 _gc_delta_push_max_level max delta level for delta push 100 1152 _gc_delta_push_compression if delta >= K bytes, compress before push 3072 1153 _gc_flush_during_affinity if TRUE, flush during affinity TRUE 1154 _gc_cr_server_read_wait if TRUE, cr server waits for a read to complete TRUE 1155 _gc_read_mostly_flush_check if TRUE, optimize flushes for read mostly objects FALSE 1156 _gc_override_force_cr if TRUE, try to override force-cr requests TRUE 1157 _gc_escalate_bid if TRUE, escalates create a bid TRUE 1158 _gc_cpu_time if TRUE, record the gc cpu time FALSE 1159 _gc_fg_merge if TRUE, merge pi buffers in the foreground TRUE 1160 _gc_no_fairness_for_clones if TRUE, no fairness if we serve a clone TRUE 1161 _gc_serve_high_pi_as_current if TRUE, use a higher clone scn when serving a pi TRUE 1162 _gc_sanity_check_cr_buffers if TRUE, sanity check CR buffers FALSE 1163 _adaptive_direct_read Adaptive Direct Read TRUE 1164 _adaptive_direct_write Adaptive Direct Write TRUE 1165 _db_block_align_direct_read Align Direct Reads TRUE 1166 _db_noarch_disble_optim Image redo logging (NOARCHIVEMODE) FALSE 1167 _db_disable_temp_encryption Disable Temp Encryption for Spills FALSE 1168 db_unrecoverable_scn_tracking Track nologging SCN in controlfile TRUE 1169 _direct_io_slots number of slots for direct path I/O 0 1170 _direct_io_skip_cur_slot_on_error Skip current slot on error TRUE 1171 _direct_io_wslots number of write slots for direct path I/O 0 1172 thread Redo thread to mount 0 1173 _disable_incremental_checkpoints Disable incremental checkpoints for thread recovery FALSE 1174 _disable_thread_internal_disable Disable thread internal disable feature FALSE 1175 _disable_selftune_checkpointing Disable self-tune checkpointing FALSE 1176 _selftune_checkpointing_lag Self-tune checkpointing lag the tail of the redo log 300 1177 _target_rba_max_lag_percentage target rba max log lag percentage 81 1178 _no_recovery_through_resetlogs no recovery through this resetlogs operation FALSE 1179 fast_start_io_target Upper bound on recovery reads 0 1180 fast_start_mttr_target MTTR target in seconds 0 1181 _log_blocks_during_backup log block images when changed during backup TRUE 1182 _allow_resetlogs_corruption allow resetlogs even if it will cause corruption FALSE 1183 _allow_terminal_recovery_corruption Finish terminal recovery even if it may cause corruption FALSE 1184 _allow_read_only_corruption allow read-only open even if database is corrupt FALSE 1185 _recovery_skip_cfseq_check allow media recovery even if controlfile seq check fails FALSE 1186 log_checkpoints_to_alert log checkpoint begin/end to alert file FALSE 1187 db_lost_write_protect enable lost write detection NONE 1188 _switchover_to_standby_option option for graceful switchover to standby OPEN_ONE 1189 recovery_parallelism number of server processes to use for parallel recovery 0 1190 _serial_recovery force serial recovery or parallel recovery FALSE 1191 _coord_message_buffer parallel recovery coordinator side extra message buffer size 0 1192 _multiple_instance_recovery use multiple instances for media recovery FALSE 1193 _backup_kgc_scheme specifies compression scheme ZLIB 1194 _backup_kgc_bufsz specifies buffer size to be used by BASIC compression 0 1195 _backup_kgc_type specifies compression type used by kgc BASIC compression 0 1196 _backup_kgc_niters specifies number of iterations done by BASIC compression 0 1197 _backup_lzo_size specifies buffer size for LOW compression 262144 1198 _backup_kgc_perflevel specifies compression (performance) level for MEDIUM compression 1 1199 _backup_kgc_windowbits specifies window size for MEDIUM compression 15 1200 _backup_kgc_memlevel specifies memory level for MEDIUM compression 8 1201 _backup_kgc_blksiz specifies buffer size to be used by HIGH compression 9 1202 _backup_ksfq_bufcnt_max maximum number of buffers used for backup/restore 64 1203 _backup_ksfq_bufsz size of buffers used for backup/restore 0 1204 _backup_ksfq_bufcnt number of buffers used for backup/restore 0 1205 _backup_disk_bufsz size of buffers used for DISK channels 0 1206 _backup_disk_bufcnt number of buffers used for DISK channels 0 1207 _backup_seq_bufsz size of buffers used for non-DISK channels 0 1208 _backup_seq_bufcnt number of buffers used for non-DISK channels 0 1209 _backup_file_bufsz size of buffers used for file access 0 1210 _backup_file_bufcnt number of buffers used for file access 0 1211 _restore_maxopenfiles restore assumption for maxopenfiles 8 1212 _backup_max_gap_size largest gap in an incremental/optimized backup buffer, in bytes 4294967294 1213 _unused_block_compression enable unused block compression TRUE 1214 _restore_spfile restore spfile to this location 1215 _dummy_instance dummy instance started by RMAN FALSE 1216 _rman_io_priority priority at which rman backup i/o's are done 3 1217 _rman_restore_through_link RMAN restore through link FALSE 1218 _backup_encrypt_opt_mode specifies encryption block optimization mode 4294967294 1219 _disable_initial_block_compression disable initial block compression FALSE 1220 _undo_block_compression enable undo block compression TRUE 1221 _update_datafile_headers_with_space_information user requested update of datafile headers of locally managed datafiles with space information FALSE 1222 _disable_cell_optimized_backups disable cell optimized backups FALSE 1223 _backup_align_write_io align backup write I/Os TRUE 1224 _backup_dynamic_buffers dynamically compute backup/restore buffer sizes TRUE 1225 _backup_automatic_retry automatic retry on backup write errors 10 1226 _controlfile_autobackup_delay time delay (in seconds) for performing controlfile autobackups 300 1227 _deferred_log_dest_is_valid consider deferred log dest as valid for log deletion (TRUE/FALSE) TRUE 1228 _log_deletion_policy archivelog deletion policy for mandatory/all destination mandatory 1229 _auto_bmr enable/disable Auto BMR enabled 1230 _auto_bmr_req_timeout Auto BMR Requester Timeout 60 1231 _auto_bmr_sess_threshold Auto BMR Request Session Threshold 30 1232 _auto_bmr_pub_timeout Auto BMR Publish Timeout 10 1233 _auto_bmr_fc_time Auto BMR Flood Control Time 60 1234 _auto_bmr_bg_time Auto BMR Process Run Time 3600 1235 _auto_bmr_sys_threshold Auto BMR Request System Threshold 100 1236 _bmr_prefered_standby standby db_unique_name prefered for standby BMR 1237 _tts_allow_charset_mismatch allow plugging in a tablespace with an incompatible character set FALSE 1238 _xtts_allow_pre10 allow cross platform for pre10 compatible tablespace FALSE 1239 _xtts_set_platform_info set cross platform info during file header read FALSE 1240 _bypass_xplatform_error bypass datafile header cross-platform-compliance errors FALSE 1241 _query_on_physical query on physical TRUE 1242 _recoverable_recovery_batch_percent Recoverable recovery batch size (percentage of buffer cache) 50 1243 _disable_incremental_recovery_ckpt Disable incremental recovery checkpoint mechanism FALSE 1244 _incremental_recovery_ckpt_min_batch minimum number of writes for incremental recovery ckpt every second 500 1245 _multi_instance_pmr force multi instance or single instance parallel recovery TRUE 1246 _disable_active_influx_move disable active influx move during parallel media recovery FALSE 1247 _defer_log_boundary_ckpt defer media recovery checkpoint at log boundary TRUE 1248 _defer_log_count Number of log boundaries media recovery checkpoint lags behind 2 1249 _transient_logical_clear_hold_mrp_bit clear KCCDI2HMRP flag during standby recovery FALSE 1250 _log_max_optimize_threads maximum number of threads to which log scan optimization is applied 128 1251 _reduce_sby_log_scan enable standby log scan optimization TRUE 1252 _sync_primary_wait_time wait time for alter session sync with primary 5 1253 _standby_implicit_rcv_timeout minutes to wait for redo during standby implicit recovery 1 1254 _readable_standby_sync_timeout readable standby query scn sync timeout 10 1255 _read_only_violation_max_count read-only violation array max count 500 1256 _read_only_violation_max_count_per_module read-only violation array per module max count 100 1257 _read_only_violation_dump_to_trace read-only violation dump to trace files FALSE 1258 _media_recovery_read_batch media recovery block read batch 32 1259 _standby_causal_heartbeat_timeout readable standby causal heartbeat timeout 2 1260 _bct_public_dba_buffer_size total size of all public change tracking dba buffers, in bytes 0 1261 _bct_initial_private_dba_buffer_size initial number of entries in the private change tracking dba buffers 0 1262 _bct_bitmaps_per_file number of bitmaps to store for each datafile 8 1263 _bct_file_block_size block size of change tracking file, in bytes 0 1264 _bct_file_extent_size extent size of change tracking file, in bytes 0 1265 _bct_chunk_size change tracking datafile chunk size, in bytes 0 1266 _bct_crash_reserve_size change tracking reserved crash recovery SGA space, in bytes 262144 1267 _bct_buffer_allocation_size size of one change tracking buffer allocation, in bytes 2097152 1268 _bct_buffer_allocation_max maximum size of all change tracking buffer allocations, in bytes 104857600 1269 _bct_buffer_allocation_min_extents mininum number of extents to allocate per buffer allocation 1 1270 _bct_fixtab_file change tracking file for fixed tables 1271 _disable_primary_bitmap_switch disable primary bitmap switch FALSE 1272 _bct_health_check_interval CTWR health check interval (seconds), zero to disable 60 1273 db_flashback_retention_target Maximum Flashback Database log retention time in minutes. 1440 1274 _validate_flashback_database Scan database to validate result of flashback database FALSE 1275 _flashback_allow_noarchivelog Allow enabling flashback on noarchivelog database FALSE 1276 _verify_flashback_redo Verify that the redo logs needed for flashback are available TRUE 1277 _flashback_verbose_info Print verbose information about flashback database FALSE 1278 _flashback_dynamic_enable_failure Simulate failures during dynamic enable 0 1279 _flashback_dynamic_enable enable flashback enable code path TRUE 1280 _allow_drop_snapshot_standby_grsp Allow dropping snapshot standby guaranteed restore point FALSE 1281 _flashback_marker_cache_size Size of flashback database marker cache 328 1282 _flashback_marker_cache_enabled Enable flashback database marker cache TRUE 1283 _flashback_database_test_only Run Flashback Database in test mode FALSE 1284 _allow_drop_ts_with_grp Allow drop Tablespace with guaranteed restore points FALSE 1285 _flashback_logfile_enqueue_timeout flashback logfile enqueue timeout for opens 600 1286 _flashback_barrier_interval Flashback barrier interval in seconds 1800 1287 _flashback_standby_barrier_interval Flashback standby barrier interval in seconds 1 1288 _flashback_max_standby_sync_span Maximum time span between standby recovery sync for flashback 300 1289 _flashback_fuzzy_barrier Use flashback fuzzy barrier TRUE 1290 _disable_kcb_flashback_blocknew_opt Disable KCB flashback block new optimization FALSE 1291 _disable_kcbl_flashback_blocknew_opt Disable KCBL flashback block new optimization FALSE 1292 _disable_flashback_wait_callback Disable flashback wait callback FALSE 1293 _check_block_new_invariant_for_flashback check block new invariant for flashback FALSE 1294 _allow_compatibility_adv_w_grp allow advancing DB compatibility with guaranteed restore points FALSE 1295 _minimum_db_flashback_retention Minimum flashback retention 60 1296 _flashback_delete_chunk_MB Amount of flashback log (in MB) to delete in one attempt 128 1297 _flashback_11.1_block_new_opt use 11.1 flashback block new optimization scheme FALSE 1298 _flashback_log_size Flashback log size 1000 1299 _flashback_log_min_size Minimum flashback log size 100 1300 _db_flashback_log_min_size Minimum flashback database log size in bytes 16777216 1301 _db_flashback_log_min_total_space Minimum flashback database log total space in bytes 0 1302 _flashback_copy_latches Number of flashback copy latches 10 1303 _flashback_n_log_per_thread Desired number of flashback logs per flashback thread 128 1304 _flashback_max_n_log_per_thread Maximum number of flashback logs per flashback thread 2048 1305 _flashback_generation_buffer_size flashback generation buffer size 8388608 1306 _flashback_max_log_size Maximum flashback log size in bytes (OS limit) 0 1307 _flashback_log_io_error_behavior Specify Flashback log I/O error behavior 0 1308 _flashback_prepare_log Prepare Flashback logs in the background TRUE 1309 _flashback_size_based_on_redo Size new flashback logs based on average redo log size TRUE 1310 _flashback_validate_controlfile validate flashback pointers in controlfile for 11.2.0.2 database FALSE 1311 _flashback_format_chunk_mb Chunk mega-bytes for formatting flashback logs using sync write 4 1312 _flashback_format_chunk_mb_dwrite Chunk mega-bytes for formatting flashback logs using delayed write 16 1313 _flashback_log_rac_balance_factor flashback log rac balance factor 10 1314 _flashback_write_max_loop_limit Flashback writer loop limit before it returns 10 1315 _flashback_hint_barrier_percent Flashback hint barrier percent 20 1316 _drop_flashback_logical_operations_enq Drop logical operations enqueue immediately during flashback marker generation FALSE 1317 _percent_flashback_buf_partial_full Percent of flashback buffer filled to be considered partial full 50 1318 _tdb_debug_mode set debug mode for testing transportable database 16 1319 _log_read_buffers Number of log read buffers for media recovery 8 1320 _change_vector_buffers Number of change vector buffers for media recovery 1 1321 _kcfis_trace_level sets kcfis tracing level 0 1322 _kcfis_spawn_debugger Decides whether to spawn the debugger at kcfis initialize FALSE 1323 _kcfis_trace_bucket_size KCFIS tracing bucket size in bytes 131072 1324 _kcfis_fault_control Fault Injection Control 0 1325 _kcfis_caching_enabled enable kcfis intra-scan session caching TRUE 1326 _kcfis_large_payload_enabled enable large payload to be passed to cellsrv FALSE 1327 _kcfis_cell_passthru_enabled Do not perform smart IO filtering on the cell FALSE 1328 _kcfis_dump_corrupt_block Dump any corrupt blocks found during smart IO TRUE 1329 _kcfis_kept_in_cellfc_enabled Enable usage of cellsrv flash cache for kept objects TRUE 1330 _kcfis_nonkept_in_cellfc_enabled Enable use of cellsrv flash cache for non-kept objects FALSE 1331 _kcfis_rdbms_blockio_enabled Use block IO instead of smart IO in the smart IO module on RDBMS FALSE 1332 _kcfis_fast_response_enabled Enable smart scan optimization for fast response (first rows) TRUE 1333 _kcfis_fast_response_threshold Fast response - the number of IOs after which smartIO is used 1048576 1334 _kcfis_fast_response_initiosize Fast response - The size of the first IO in logical blocks 2 1335 _kcfis_fast_response_iosizemult Fast response - (next IO size = current IO size * this parameter) 4 1336 _kcfis_max_out_translations Sets the maximum number of outstanding translations in kcfis 5000 1337 _kcfis_max_cached_sessions Sets the maximum number of kcfis sessions cached 10 1338 _kcfis_storageidx_disabled Don't use storage index optimization on the storage cell FALSE 1339 _kcfis_disable_platform_decryption Don't use platform-specific decryption on the storage cell FALSE 1340 _kcfis_storageidx_diag_mode Debug mode for storage index on the cell 0 1341 _kcfis_test_control1 kcfis tst control1 0 1342 _kcfis_stats_level sets kcfis stats level 0 1343 _kcfis_io_prefetch_size Smart IO prefetch size for a cell 8 1344 _kcfis_block_dump_level Smart IO block dump level 0 1345 _kcfis_ioreqs_throttle_enabled Enable Smart IO requests throttling TRUE 1346 _kcfis_work_set_appliances Working Set of appliances in a KCFIS session 2 1347 _kcfis_control1 Kcfis control1 0 1348 _kcfis_control2 Kcfis control2 0 1349 _kcfis_control3 Kcfis control3 0 1350 _kcfis_control4 Kcfis control4 0 1351 _kcfis_control5 Kcfis control5 0 1352 _kcfis_control6 Kcfis control6 0 1353 _kcfis_oss_io_size KCFIS OSS I/O size 0 1354 _kcfis_read_buffer_limit KCFIS Read Buffer (per session) memory limit in bytes 0 1355 _cell_file_format_chunk_size Cell file format chunk size in MB 0 1356 _cell_offload_capabilities_enabled specifies capability table to load 1 1357 _kcfis_cell_passthru_fromcpu_enabled Enable automatic passthru mode when cell CPU util is too high TRUE 1358 _db_block_prefetch_skip_reading_enabled Batched IO enable skip reading buffers TRUE 1359 _db_block_prefetch_fast_longjumps_enabled Batched IO enable fast longjumps TRUE 1360 _db_block_prefetch_private_cache_enabled Batched IO enable private cache TRUE 1361 _datafile_write_errors_crash_instance datafile write errors crash instance TRUE 1362 _siop_perc_of_bc_x100 percentange * 100 of cache to transfer to shared io pool 2500 1363 _db_flashback_iobuf_size Flashback IO Buffer Size 1 1364 _db_flashback_num_iobuf Flashback Number of IO buffers 32 1365 _flashback_enable_ra Flashback enable read ahead TRUE 1366 dml_locks dml locks - one for each table modified in a transaction 3396 1367 _row_locking row-locking always 1368 _serializable serializable FALSE 1369 _scn_wait_interface_max_timeout_secs max timeout for scn wait interface in kta 2147483647 1370 _scn_wait_interface_max_backoff_time_secs max exponential backoff time for scn wait interface in kta 600 1371 replication_dependency_tracking tracking dependency for Replication parallel propagation TRUE 1372 _ktb_debug_flags ktb-layer debug flags 0 1373 _log_committime_block_cleanout Log commit-time block cleanout FALSE 1374 _ktc_latches number of ktc latches 0 1375 _prescomm presume commit of IMU transactions FALSE 1376 _recursive_imu_transactions recursive transactions may be IMU FALSE 1377 _ktc_debug for ktc debug 0 1378 _enable_minscn_cr enable/disable minscn optimization for CR TRUE 1379 transactions max. number of concurrent active transactions 849 1380 transactions_per_rollback_segment number of active transactions per rollback segment 5 1381 _ktu_latches number of KTU latches 0 1382 rollback_segments undo segment list 1383 _rollback_segment_initial starting undo segment number 1 1384 _rollback_segment_count number of undo segments 0 1385 _offline_rollback_segments offline undo segment list 1386 _corrupted_rollback_segments corrupted undo segment list 1387 _transaction_auditing transaction auditing records generated in the redo log TRUE 1388 _enable_block_level_transaction_recovery enable block level recovery TRUE 1389 _cleanup_rollback_entries no. of undo entries to apply per transaction cleanup 100 1390 undo_management instance runs in SMU mode if TRUE, else in RBU mode AUTO 1391 undo_tablespace use/switch undo tablespace UNDOTBS1 1392 _smu_error_simulation_site site ID of error simulation in KTU code 0 1393 _smu_error_simulation_type error type for error simulation in KTU code 0 1394 _collect_undo_stats Collect Statistics v$undostat TRUE 1395 _smu_timeouts comma-separated *AND double-quoted* list of AUM timeouts: mql, tur, sess_exprn, qry_exprn, slot_intvl 1396 _smu_debug_mode <debug-flag> - set debug event for testing SMU operations 0 1397 _undo_debug_mode debug flag for undo related operations 0 1398 _verify_undo_quota TRUE - verify consistency of undo quota statistics FALSE 1399 _tablespaces_per_transaction estimated number of tablespaces manipulated by each transaction 10 1400 _in_memory_tbs_search FALSE - disable fast path for alter tablespace read only TRUE 1401 _discrete_transactions_enabled enable OLTP mode FALSE 1402 _in_memory_undo Make in memory undo for top level transactions TRUE 1403 _imu_pools in memory undo pools 3 1404 _row_cr enable row cr for all sql TRUE 1405 _undo_autotune enable auto tuning of undo_retention FALSE 1406 _highthreshold_undoretention high threshold undo_retention in seconds 4294967294 1407 _branch_tagging enable branch tagging for distributed transaction TRUE 1408 undo_retention undo retention in seconds 60 1409 _rollback_stopat stop at -position to step rollback 0 1410 _transaction_recovery_servers max number of parallel recovery slaves that may be used 0 1411 fast_start_parallel_rollback max number of parallel recovery slaves that may be used LOW 1412 _parallel_recovery_stopat stop at -position- to step through SMON 32767 1413 resumable_timeout set resumable_timeout 0 1414 _max_cr_rollbacks Maximum number of CR rollbacks per block (LMS) 0 1415 _cr_trc_buf_size size of cr trace buffer 8192 1416 _disable_txn_alert disable txn layer alert 0 1417 _undo_debug_usage invoke undo usage functions for testing 0 1418 _db_change_notification_enable enable db change notification TRUE 1419 _disable_flashback_archiver disable flashback archiver 0 1420 _disable_fba_qrw disable flashback archiver query rewrite 0 1421 _disable_fba_wpr disable flashback archiver wait for prepared transactions 0 1422 _flashback_archiver_partition_size flashback archiver table partition size 0 1423 _fbda_busy_percentage flashback archiver busy percentage 0 1424 _fbda_inline_percentage flashback archiver inline percentage 0 1425 _fbda_debug_mode flashback archiver debug event for testing 0 1426 _fbda_debug_assert flashback archiver debug assert for testing 0 1427 _fbda_global_bscn_lag flashback archiver global barrier scn lag 0 1428 _fbda_rac_inactive_limit flashback archiver rac inactive limit 0 1429 _partition_large_extents Enables large extent allocation for partitioned tables TRUE 1430 _index_partition_large_extents Enables large extent allocation for partitioned indices FALSE 1431 instance_number instance number 0 1432 _allocate_creation_order should files be examined in creation order during allocation FALSE 1433 _log_space_errors should we report space errors to alert log TRUE 1434 _assm_low_gsp_threshold Number of blocks rejected before collecting stats 10000 1435 _assm_high_gsp_threshold Number of blocks rejected before growing segment 11024 1436 _simulate_io_wait Simulate I/O wait to test segment advisor 0 1437 _bump_highwater_mark_count how many blocks should we allocate per free list on advancing HWM 0 1438 _assm_default ASSM default TRUE 1439 _enable_hwm_sync enable HWM synchronization TRUE 1440 _hwm_sync_threshold HWM synchronization threshold in percentage 10 1441 _enable_check_truncate enable checking of corruption caused by canceled truncate TRUE 1442 _enable_tablespace_alerts enable tablespace alerts TRUE 1443 _disable_temp_tablespace_alerts disable tablespace alerts for TEMPORARY tablespaces FALSE 1444 _disable_undo_tablespace_alerts disable tablespace alerts for UNDO tablespaces FALSE 1445 _last_allocation_period period over which an instance can retain an active level1 bitmap 5 1446 _securefiles_forceflush securefiles force flush before allocation FALSE 1447 _securefiles_concurrency_estimate securefiles concurrency estimate 12 1448 _securefiles_memory_percentofSGA securefiles memory as percent of SGA 20 1449 _inst_locking_period period an instance can retain a newly acquired level1 bitmap 5 1450 _allocation_update_interval interval at which successful search in L1 should be updated 3 1451 _minimum_blocks_to_shrink minimum number freeable blocks for shrink to be present 0 1452 _minimum_extents_to_shrink minimum number freeable extents for shrink to be present 1 1453 _use_best_fit use best fit to allocate space FALSE 1454 _step_down_limit_in_pct step down limit in percentage 1 1455 _enable_space_preallocation enable space pre-allocation 3 1456 _ktspsrch_maxsc maximum segments supported by space search cache 1024 1457 _ktspsrch_maxskip space search cache rejection skip upper limit 5 1458 _assm_force_fetchmeta enable metadata block fetching in ASSM segment scan FALSE 1459 _max_fsu_segments Maximum segments to track for fast space usage 4096 1460 _max_fsu_stale_time Allowed space usage staleness in seconds 600 1461 _max_shrink_obj_stats number of segments for which shrink stats will be maintained 0 1462 _check_ts_threshold check tablespace thresholds 0 1463 _async_ts_threshold check tablespace thresholds asynchronously 1 1464 _kttext_warning tablespace pre-extension warning threshold in percentage 5 1465 _smon_internal_errlimit limit of SMON internal errors 100 1466 _smon_undo_seg_rescan_limit limit of SMON continous undo segments re-scan 10 1467 _space_align_size space align size 1048576 1468 _enable_spacebg enable space management background task TRUE 1469 _max_spacebg_slaves maximum space management background slaves 10 1470 _max_spacebg_tasks maximum space management background tasks 1000 1471 _max_spacebg_msgs_percentage maximum space management interrupt message throttling 50 1472 _ktslj_segext_warning segment pre-extension warning threshold in percentage 10 1473 _ktslj_segext_warning_mb segment pre-extension warning threshold in MB 0 1474 _ktslj_segext_max_mb segment pre-extension max size in MB (0: unlimited) 0 1475 _ktslj_segext_retry segment pre-extension retry 5 1476 _securefiles_fg_retry segment retry before foreground waits 100 1477 _securefiles_bulkinsert securefiles segment insert only optization FALSE 1478 _db_row_overlap_checking row overlap checking override parameter for data/index blocks TRUE 1479 _db_index_block_checking index block checking override parameter TRUE 1480 _kdi_avoid_block_checking avoid index block checking on sensitive opcodes FALSE 1481 db_block_checking header checking and data and index block checking TRUE 1482 _disable_block_checking disable block checking at the session level FALSE 1483 _kd_symtab_chk enable or disable symbol table integrity block check TRUE 1484 recyclebin recyclebin processing on 1485 _compression_compatibility Compression compatability 11.2.0.3.0 1486 _check_column_length check column length TRUE 1487 _oltp_compression oltp compression enabled TRUE 1488 _inplace_update_retry inplace update retry for ora1551 TRUE 1489 _limit_itls limit the number of ITLs in OLTP Compressed Tables 20 1490 _force_hsc_compress compress all newly created tables FALSE 1491 _force_oltp_compress OLTP Compress all newly created compressed tables FALSE 1492 _force_oltp_update_opt OLTP Compressed row optimization on update TRUE 1493 _force_arch_compress Archive Compress all newly created compressed tables 0 1494 _compression_advisor Compression advisor 0 1495 _compression_chain percentage of chained rows allowed for Compression 90 1496 _compression_above_cache number of recompression above cache for sanity check 0 1497 _oltp_compression_gain oltp compression gain 10 1498 _arch_compression archive compression enabled TRUE 1499 _arch_comp_dbg_scan archive compression scan debug 0 1500 _arch_comp_dec_block_check_dump decompress archive compression blocks for checking and dumping 1 1501 _lmn_compression suppl logging for compression enabled TRUE 1502 _alternate_iot_leaf_block_split_points enable alternate index-organized table leaf-block split-points TRUE 1503 _kdu_array_depth array update retry recursion depth limits 16 1504 _cell_offload_hybridcolumnar Query offloading of hybrid columnar compressed tables to exadata TRUE 1505 _disable_implicit_row_movement disable implicit row movement FALSE 1506 _release_insert_threshold maximum number of unusable blocks to unlink from freelist 5 1507 _walk_insert_threshold maximum number of unusable blocks to walk across freelist 0 1508 _enable_hash_overflow TRUE - enable hash cluster overflow based on SIZE FALSE 1509 _kdtgsp_retries max number of retries in kdtgsp if space returns same block 1024 1510 _minfree_plus max percentage of block space + minfree before we mark block full 0 1511 _use_seq_process_cache whether to use process local seq cache TRUE 1512 _disable_index_block_prefetching disable index block prefetching FALSE 1513 _index_scan_check_skip_corrupt check and skip corrupt blocks during index scans FALSE 1514 _index_scan_check_stopkey check stopkey during index range scans FALSE 1515 _reuse_index_loop number of blocks being examine for index block reuse 5 1516 _kdis_reject_limit #block rejections in space reclamation before segment extension 5 1517 _kdis_reject_level b+tree level to enable rejection limit 24 1518 _kdis_reject_ops enable rejection heuristic for branch splits FALSE 1519 _kdbl_enable_post_allocation allocate dbas after populating data buffers FALSE 1520 _ldr_io_size size of write IOs used during a load operation 262144 1521 _ldr_io_size2 size of write IOs used during a load operation of EHCC with HWMB 1048576 1522 _ldr_pga_lim pga limit, beyond which new partition loads are delayed 0 1523 _ignore_desc_in_index ignore DESC in indexes, sort those columns ascending anyhow FALSE 1524 _kdic_segarr_sz size threshold for segmented arrays for seg_info_kdicctx 0 1525 _keep_remote_column_size remote column size does not get modified FALSE 1526 _ignore_edition_enabled_for_EV_creation ignore schema's edition-enabled status during EV creation FALSE 1527 _kdli_trace inode trace level 0 1528 _kdli_sort_dbas sort dbas during chunkification FALSE 1529 _kdli_safe_callbacks invoke inode read/write callbacks safely TRUE 1530 _kdli_inode_preference inline inode evolution preference (data, headless, lhb) data 1531 _kdli_reshape reshape an inode to inline or headless on length truncation FALSE 1532 _kdli_cache_inode cache inode state across calls TRUE 1533 _kdli_cache_verify verify cached inode via deserialization FALSE 1534 _kdli_cache_size maximum #entries in inode cache 8 1535 _kdli_memory_protect trace accesses to inode memory outside kdli API functions FALSE 1536 _kdli_rci_lobmap_entries #entries in RCI lobmap before migration to lhb 255 1537 _kdli_readahead_strategy shared/cached IO readahead strategy contig 1538 _kdli_readahead_limit shared/cached IO readahead limit 0 1539 _kdli_sio_on enable shared IO pool operations TRUE 1540 _kdli_sio_min_read shared IO pool read threshold 0 1541 _kdli_sio_min_write shared IO pool write threshold 0 1542 _kdli_sio_async asynchronous shared IO TRUE 1543 _kdli_sio_fgio reap asynchronous IO in the foreground TRUE 1544 _kdli_sio_nbufs maximum #IO buffers to allocate per session 8 1545 _kdli_sio_niods maximum #IO descriptors to allocate per session 8 1546 _kdli_sio_strategy shared IO strategy: block vs. extent extent 1547 _kdli_sio_fileopen shared IO fileopen mode: datasync vs nodatasync vs async none 1548 _kdli_sio_flush enable shared IO pool operations FALSE 1549 _kdli_sio_bps maximum blocks per IO slot 0 1550 _kdli_sio_pga use PGA allocations for direct IO FALSE 1551 _kdli_sio_pga_top PGA allocations come from toplevel PGA heap FALSE 1552 _kdli_sio_dop degree-of-parallelism in the SIO keep pool 2 1553 _kdli_sio_free free IO buffers when not in active use TRUE 1554 _kdli_sio_backoff use exponential backoff when attempting SIOP allocations FALSE 1555 _kdli_inline_xfm allow inline transformed lobs TRUE 1556 _kdli_timer_trc trace inode timers to uts/tracefile FALSE 1557 _kdli_timer_dmp dump inode timers on session termination FALSE 1558 _kdli_cacheable_length minimum lob length for inode cacheability 0 1559 _kdli_small_cache_limit size limit of small inode cache 32 1560 _kdli_inject_assert inject asserts into the inode 0 1561 _kdli_inject_crash inject crashes into the inode 0 1562 _kdli_space_cache_limit maximum size of the space cache in #blocks 2048 1563 _kdli_force_cr force CR when reading data blocks of direct-write lobs TRUE 1564 _kdli_force_cr_meta force CR when reading metadata blocks of direct-write lobs TRUE 1565 _kdli_recent_scn use recent (not dependent) scns for block format/allocation FALSE 1566 _kdli_itree_entries #entries in lhb/itree blocks (for testing only) 0 1567 _kdli_cache_read_threshold minimum lob size for cache->nocache read (0 disables heuristic) 0 1568 _kdli_cache_write_threshold minimum lob size for cache->nocache write (0 disables heuristic) 0 1569 _kdli_full_readahead_threshold maximum lob size for full readahead 0 1570 _kdli_force_storage force storage settings for all lobs none 1571 _kdli_allow_corrupt allow corrupt filesystem_logging data blocks during read/write TRUE 1572 _kdli_squeeze compact lobmap extents with contiguous dbas TRUE 1573 _kdli_buffer_inject use buffer injection for CACHE [NO]LOGGING lobs TRUE 1574 _kdli_inject_batch buffer injection batch size [1, KCBNEWMAX] 0 1575 _kdli_flush_injections flush injected buffers of CACHE NOLOGGING lobs before commit TRUE 1576 _kdli_flush_cache_reads flush cache-reads data blocks after load FALSE 1577 _kdli_checkpoint_flush do not invalidate cache buffers after write FALSE 1578 _kdli_delay_flushes delay flushing cache writes to direct-write lobs TRUE 1579 _kdli_dbc override db_block_checking setting for securefiles none 1580 _kdli_preallocation_pct percentage preallocation [0 .. inf) for lob growth 0 1581 _kdli_preallocation_mode preallocation mode for lob growth length 1582 _kdli_inplace_overwrite maximum inplace overwrite size (> chunksize) 0 1583 _kdli_sio_write_pct percentage of buffer used for direct writes 100 1584 _kdli_sio_fbwrite_pct percentage of buffer used for direct writes in flashback-db 35 1585 _kdli_vll_direct use skip-navigation and direct-positioning in vll-domain TRUE 1586 _kdli_oneblk allocate chunks as single blocks FALSE 1587 _kdli_STOP_tsn undocumented parameter for internal use only 0 1588 _kdli_STOP_dba undocumented parameter for internal use only 0 1589 _kdli_STOP_fsz undocumented parameter for internal use only 0 1590 _kdli_STOP_bsz undocumented parameter for internal use only 0 1591 _kdli_STOP_nio undocumented parameter for internal use only 0 1592 _kdlw_enable_write_gathering enable lob write gathering for sql txns TRUE 1593 _kdlw_enable_ksi_locking enable ksi locking for lobs FALSE 1594 _kdlwp_flush_threshold WGC flush threshold in bytes 4194304 1595 _kdlxp_cmp_subunit_size size of compression sub-unit in bytes 262144 1596 _kdlxp_minxfm_size minimum transformation size in bytes 32768 1597 _kdlxp_lobcompress enable lob compression - only on SecureFiles FALSE 1598 _kdlxp_lobcmplevel Default securefile compression 2 1599 _kdlxp_lobcmprciver Default securefile compression map version 1 1600 _kdlxp_lobencrypt enable lob encryption - only on SecureFiles FALSE 1601 _kdlxp_xfmcache enable xfm cache - only on SecureFiles TRUE 1602 _kdlxp_lobcmpadp enable adaptive compression - only on SecureFiles FALSE 1603 _kdlxp_uncmp lob data uncompressed - only on SecureFiles FALSE 1604 _kdlxp_mincmplen minimum loblen to compress - only on SecureFiles 200 1605 _kdlxp_mincmp minimum comp ratio in pct - only on SecureFiles 20 1606 db_securefile permit securefile storage during lob creation PERMITTED 1607 _kdlxp_lobdeduplicate enable lob deduplication - only on SecureFiles FALSE 1608 _kdlxp_lobdedupvalidate enable deduplicate validate - only on SecureFiles TRUE 1609 _kdlxp_dedup_hash_algo secure hash algorithm for deduplication - only on SecureFiles SHA1 1610 _kdlxp_dedup_flush_threshold deduplication flush threshold in bytes 8388608 1611 _kdlxp_dedup_prefix_threshold deduplication prefix hash threshold in bytes 1048576 1612 _kdlxp_dedup_inl_pctfree deduplication pct size increase by which inlining avoided 5 1613 _kdlxp_dedup_wapp_len deduplication length to allow write-append 0 1614 _kdlxp_spare1 deduplication spare 1 0 1615 _securefile_timers collect kdlu timers and accumulate per layers FALSE 1616 _kdlu_trace_session UTS session dump 0 1617 _kdlu_trace_system UTS system dump 0 1618 _kdlu_trace_layer UTS kdlu per-layer trace level 0 1619 _kdlu_max_bucket_size UTS kdlu bucket size 4194304 1620 _kdlu_max_bucket_size_mts UTS kdlu bucket size for mts 131072 1621 _kdz_hcc_track_upd_rids Enable rowid tracking during updates TRUE 1622 _kdz_hcc_flags Miscellaneous HCC flags 0 1623 _row_cache_cursors number of cached cursors for row cache management 20 1624 _kgl_cluster_lock Library cache support for cluster lock TRUE 1625 _kgl_cluster_pin Library cache support for cluster pins TRUE 1626 _kgl_cluster_lock_read_mostly Library cache support for cluster lock read mostly optimization FALSE 1627 _kgl_latch_count number of library cache latches 0 1628 _kgl_heap_size extent size for library cache heap 0 4096 1629 _kgl_fixed_extents fixed extent size for library cache memory allocations TRUE 1630 _kgl_bucket_count Library cache hash table bucket count (2^_kgl_bucket_count * 256) 9 1631 _library_cache_advice whether KGL advice should be turned on TRUE 1632 _kglsim_maxmem_percent max percentage of shared pool size to be used for KGL advice 5 1633 _kgl_hash_collision Library cache name hash collision possible FALSE 1634 _kgl_time_to_wait_for_locks time to wait for locks and pins before timing out 15 1635 _kgl_large_heap_warning_threshold maximum heap size before KGL writes warnings to the alert log 52428800 1636 _synonym_repoint_tracing whether to trace metadata comparisons for synonym repointing FALSE 1637 _ignore_fg_deps ignore fine-grain dependencies during invalidation 1638 _trace_kqlidp trace kqlidp0 operation FALSE 1639 _disable_fast_validate disable PL/SQL fast validation FALSE 1640 _kgl_message_locks RAC message lock count 64 1641 _kgl_debug Library cache debugging 1642 _mutex_wait_time Mutex wait time 1 1643 _mutex_spin_count Mutex spin count 255 1644 _mutex_wait_scheme Mutex wait scheme 2 1645 _kgl_min_cached_so_count Minimum cached SO count. If > 1 can help find SO corruptions 1 1646 _kgl_hot_object_copies Number of copies for the hot object 0 1647 _kgl_kqr_cap_so_stacks capture stacks for library and row cache state objects FALSE 1648 _enable_kqf_purge Enable KQF fixed runtime table purge TRUE 1649 create_stored_outlines create stored outlines for DML statements 1650 _object_number_cache_size Object number cache size 5 1651 _enable_Front_End_View_Optimization enable front end view optimization 1 1652 serial_reuse reuse the frame segments disable 1653 _cursor_features_enabled Shared cursor features enabled bits. 2 1654 _session_page_extent Session Page Extent Size 2048 1655 _cursor_runtimeheap_memlimit Shared cursor runtime heap memory limit 5242880 1656 _kks_cached_parse_errors KKS cached parse errors 0 1657 _kgx_latches # of mutex latches if CAS is not supported. 1024 1658 _cursor_stats_enabled Enable cursor stats TRUE 1659 _enable_editions_for_users enable editions for all users FALSE 1660 ldap_directory_access RDBMS's LDAP access option NONE 1661 ldap_directory_sysauth OID usage parameter no 1662 os_roles retrieve roles from the operating system FALSE 1663 rdbms_server_dn RDBMS's Distinguished Name 1664 max_enabled_roles max number of roles a user can have enabled 150 1665 remote_os_authent allow non-secure remote clients to use auto-logon accounts FALSE 1666 remote_os_roles allow non-secure remote clients to use os roles FALSE 1667 _case_sensitive_logon case sensitive logon enabled TRUE 1668 sec_case_sensitive_logon case sensitive password enabled for logon TRUE 1669 O7_DICTIONARY_ACCESSIBILITY Version 7 Dictionary Accessibility Support TRUE 1670 _passwordfile_enqueue_timeout password file enqueue timeout in seconds 900 1671 remote_login_passwordfile password file usage parameter EXCLUSIVE 1672 license_max_users maximum number of named users that can be created in the database 0 1673 _dynamic_rls_policies rls policies are dynamic TRUE 1674 _app_ctx_vers enable app ctx versioning FALSE 1675 _session_context_size session app context size 10000 1676 audit_sys_operations enable sys auditing FALSE 1677 _default_encrypt_alg default encryption algorithm 0 1678 _ols_cleanup_task Clean up unnecessary entries in OLS sessinfo table TRUE 1679 global_context_pool_size Global Application Context Pool Size in Bytes 1680 _select_any_dictionary_security_enabled Exclude user$ from SELECT ANY DICTIONARY system privilege FALSE 1681 _fusion_security Fusion Security FALSE 1682 db_domain directory part of global database name stored with CREATE DATABASE lhr.com 1683 global_names enforce that database links have same name as remote database FALSE 1684 distributed_lock_timeout number of seconds a distributed transaction waits for a lock 60 1685 _distributed_recovery_connection_hold_time number of seconds RECO holds outbound connections open 200 1686 commit_point_strength Bias this node has toward not preparing in a two-phase commit 1 1687 _k2q_latches number of k2q latches 0 1688 _clusterwide_global_transactions enable/disable clusterwide global transactions TRUE 1689 global_txn_processes number of background global transaction processes to start 1 1690 _autotune_gtx_threshold auto-tune threshold for degree of global transaction concurrency 60 1691 _forwarded_2pc_threshold auto-tune threshold for two-phase commit rate across RAC instances 10 1692 _disable_autotune_gtx disable autotune global transaction background processes FALSE 1693 _autotune_gtx_interval interval to autotune global transaction background processes 5 1694 _autotune_gtx_idle_time idle time to trigger auto-shutdown a gtx background process 600 1695 _enable_separable_transactions enable/disable separable transactions FALSE 1696 instance_name instance name supported by the instance ORCLASM 1697 service_names service names supported by the instance orclasm.lhr.com, orclasm 1698 __dg_broker_service_names service names for broker use 1699 dispatchers specifications of dispatchers (PROTOCOL=TCP) (SERVICE=orclasmXDB) 1700 shared_servers number of shared servers to start up 1 1701 max_shared_servers max number of shared servers 1702 max_dispatchers max number of dispatchers 1703 circuits max number of circuits 1704 shared_server_sessions max number of shared server sessions 1705 local_listener local listener (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.59.130)(PORT=1521)))) 1706 remote_listener remote listener 1707 listener_networks listener registration networks 1708 _pmon_load_constants server load balancing constants (S,P,D,I,L,C,M) 300,192,64,3,10,10,0,0 1709 _dispatcher_rate_ttl time-to-live for rate statistic (100ths of a second) 1710 _dispatcher_rate_scale scale to display rate statistic (100ths of a second) 1711 _enable_shared_server_vector_io Enable shared server vector I/O FALSE 1712 _shared_server_load_balance shared server load balance 0 1713 _shared_server_num_queues number of shared server common queues 2 1714 _kernel_message_network_driver kernel message network driver FALSE 1715 _dedicated_server_poll_count dedicated server poll count 10 1716 _dedicated_server_post_wait_call dedicated server post/wait call FALSE 1717 _dedicated_server_post_wait dedicated server post/wait FALSE 1718 _cp_num_hash_latches connection pool number of hash latches 1 1719 _connection_broker_host connection broker host for listen address 1720 _fast_cursor_reexecute use more memory in order to get faster execution FALSE 1721 cursor_space_for_time use more memory in order to get faster execution FALSE 1722 session_cached_cursors Number of cursors to cache in a session. 50 1723 _cursor_obsolete_threshold Number of cursors per parent before obsoletion. 100 1724 _disable_cursor_sharing disable cursor sharing FALSE 1725 _dump_qbc_tree dump top level query parse tree to trace 0 1726 remote_dependencies_mode remote-procedure-call dependencies mode parameter TIMESTAMP 1727 utl_file_dir utl_file accessible directories list /home/oracle/ 1728 smtp_out_server utl_smtp server and port configuration parameter 1729 _plsql_dump_buffer_events conditions upon which the PL/SQL circular buffer is dumped 1730 plsql_v2_compatibility PL/SQL version 2.x compatibility flag FALSE 1731 _ncomp_shared_objects_dir native compilation shared objects dir 1732 plsql_warnings PL/SQL compiler warnings settings DISABLE:ALL 1733 plsql_code_type PL/SQL code-type INTERPRETED 1734 _plsql_anon_block_code_type PL/SQL anonymous block code-type INTERPRETED 1735 plsql_debug PL/SQL debug FALSE 1736 plsql_optimize_level PL/SQL optimize level 1 1737 plsql_ccflags PL/SQL ccflags 1738 _inline_sql_in_plsql inline SQL in PL/SQL FALSE 1739 plscope_settings plscope_settings controls the compile time collection, cross reference, and storage of PL/SQL source code identifier data identifiers:none 1740 _plsql_native_frame_threshold Allocate PL/SQL native frames on the heap if size exceeds this value 4294967294 1741 _plsql_nvl_optimize PL/SQL NVL optimize FALSE 1742 _plsql_max_stack_size PL/SQL maximum stack size 0 1743 permit_92_wrap_format allow 9.2 or older wrap format in PL/SQL TRUE 1744 java_jit_enabled Java VM JIT enabled TRUE 1745 job_queue_processes maximum number of job queue slave processes 500 1746 _job_queue_interval Wakeup interval in seconds for job queue co-ordinator 5 1747 _dbms_sql_security_level Security level in DBMS_SQL 1 1748 parallel_min_percent minimum percent of threads required for parallel query 0 1749 _parallel_default_max_instances default maximum number of instances for parallel query 1 1750 _system_trig_enabled are system triggers enabled TRUE 1751 create_bitmap_area_size size of create bitmap buffer for bitmap index 8388608 1752 bitmap_merge_area_size maximum memory allow for BITMAP MERGE 1048576 1753 _kkfi_trace trace expression substitution FALSE 1754 cursor_sharing cursor sharing mode EXACT 1755 _adjust_literal_replacement If TRUE, we will adjust the SQL/PLUS output FALSE 1756 _kolfuseslf allow kolf to use slffopen FALSE 1757 result_cache_mode result cache operator usage mode MANUAL 1758 _result_cache_auto_size_threshold result cache auto max size allowed 100 1759 _result_cache_auto_time_threshold result cache auto time threshold 1000 1760 _result_cache_auto_execution_threshold result cache auto execution threshold 1 1761 _session_cached_instantiations Number of pl/sql instantiations to cache in a session. 60 1762 _protect_frame_heaps Protect cursor frame heaps FALSE 1763 _frame_cache_time number of seconds a cached frame page stay in cache. 0 1764 _cursor_cache_time number of seconds a session cached cursor stay in cache. 900 1765 _aged_out_cursor_cache_time number of seconds an aged out session cached cursor stay in cache 300 1766 _px_trace px trace parameter none 1767 _xt_trace external tables trace parameter none 1768 _xt_coverage external tables code coverage parameter none 1769 _ku_trace datapump trace parameter none 1770 _optimizer_trace optimizer trace parameter none 1771 parallel_min_servers minimum parallel query servers per instance 0 1772 parallel_max_servers maximum parallel query servers per instance 80 1773 _parallel_server_idle_time idle time before parallel query server dies (in 1/100 sec) 30000 1774 _parallel_server_sleep_time sleep time between dequeue timeouts (in 1/100ths) 10 1775 _px_send_timeout IPC message send timeout value in seconds 300 1776 _dynamic_stats_threshold delay threshold (in seconds) between sending statistics messages 30 1777 parallel_instance_group instance group to use for all parallel operations 1778 _px_execution_services_enabled enable service-based constraint of px slave allocation TRUE 1779 _parallel_fake_class_pct fake db-scheduler percent used for testing 0 1780 _px_load_publish_interval interval at which LMON will check whether to publish PX load 200 1781 parallel_execution_message_size message buffer size for parallel execution 16384 1782 _parallel_execution_message_align Alignment of PX buffers to OS page boundary FALSE 1783 _PX_use_large_pool Use Large Pool as source of PX buffers FALSE 1784 _parallel_min_message_pool minimum size of shared pool memory to reserve for pq servers 491520 1785 _px_buffer_ttl ttl for px mesg buffers in seconds 30 1786 _tq_dump_period time period for duping of TQ statistics (s) 0 1787 _affinity_on enable/disable affinity at run time TRUE 1788 _enable_default_affinity enable default implementation of hard affinity osds 0 1789 _px_max_map_val Maximum value of rehash mapping for PX 32 1790 _dss_cache_flush enable full cache flush for parallel execution FALSE 1791 _hash_join_enabled enable/disable hash join TRUE 1792 hash_area_size size of in-memory hash work area 131072 1793 _hash_multiblock_io_count number of blocks hash join will read/write at once 0 1794 _cursor_db_buffers_pinned additional number of buffers a cursor can pin at once 80 1795 _old_connect_by_enabled enable/disable old connect by FALSE 1796 _table_lookup_prefetch_size table lookup prefetch vector size 40 1797 _multi_join_key_table_lookup TRUE iff multi-join-key table lookup prefetch is enabled TRUE 1798 _table_lookup_prefetch_thresh table lookup prefetch threshold 2 1799 _adaptive_fetch_enabled enable/disable adaptive fetch in parallel group by TRUE 1800 _query_execution_cache_max_size max size of query execution cache 131072 1801 _fast_dual_enabled enable/disable fast dual TRUE 1802 _newsort_enabled controls whether new sorts can be used as system sort TRUE 1803 _newsort_type specifies options for the new sort algorithm 0 1804 _newsort_ordered_pct controls when new sort avoids sorting ordered input 63 1805 _recursive_with_max_recursion_level check for maximum level of recursion instead of checking for cycles 0 1806 _sort_spill_threshold force sort to spill to disk each time this many rows are received 0 1807 _queue_buffer_max_dump_len max number of bytes to dump to trace file for queue buffer dump 65536 1808 _force_hash_join_spill force hash join to spill to disk FALSE 1809 _nlj_batching_ae_flag FAE flag type set after restoring to IO batching buffer 2 1810 _fix_control bug fix control parameter 1811 _sdiag_crash sql diag crash NONE 1812 result_cache_max_size maximum amount of memory to be used by the cache 2883584 1813 result_cache_max_result maximum result size as percent of cache size 5 1814 result_cache_remote_expiration maximum life time (min) for any result using a remote object 0 1815 _result_cache_block_size result cache block size 1024 1816 _result_cache_copy_block_count blocks to copy instead of pinning the result 1 1817 _result_cache_global Are results available globally across RAC? TRUE 1818 _result_cache_timeout maximum time (sec) a session waits for a result 10 1819 _result_cache_auto_time_distance result cache auto time distance 300 1820 _result_cache_auto_dml_monitoring_slots result cache auto dml monitoring slot 4 1821 _result_cache_auto_dml_monitoring_duration result cache auto dml monitoring duration 15 1822 _result_cache_auto_dml_threshold result cache auto dml threshold 16 1823 _result_cache_auto_dml_trend_threshold result cache auto dml trend threshold 20 1824 _parallel_queuing_max_waitingtime parallel statement queuing: max waiting time in queue 1825 _oss_skgxp_udp_dynamic_credit_mgmt OSSLIB enable[!0]/disable[0] dynamic credit mgmt for SKGXP-UDP 1 1826 shadow_core_dump Core Size for Shadow Processes PARTIAL 1827 background_core_dump Core Size for Background Processes partial 1828 background_dump_dest Detached process dump directory /u01/app/oracle/diag/rdbms/orclasm/orclasm/trace 1829 user_dump_dest User process dump directory /u01/app/oracle/diag/rdbms/orclasm/orclasm/trace 1830 core_dump_dest Core dump directory /u01/app/oracle/diag/rdbms/orclasm/orclasm/cdump 1831 _oradbg_pathname path of oradbg script 1832 _shmprotect allow mprotect use for shared memory 0 1833 _online_patch_disable_stack_check disable check for function on stack for online patches FALSE 1834 _vendor_lib_loc Vendor library search root directory 1835 _disable_sun_rsm Disable IPC OSD support for Sun RSMAPI TRUE 1836 _ipc_test_failover Test transparent cluster network failover 0 1837 _ipc_test_mult_nets simulate multiple cluster networks 0 1838 _ipc_fail_network Simulate cluster network failer 0 1839 audit_file_dest Directory in which auditing files are to reside /u01/app/oracle/admin/orclasm/adump 1840 audit_syslog_level Syslog facility and level 1841 _sem_per_semid the exact number of semaphores per semaphore set to allocate 1842 _ops_per_semop the exact number of operations per semop system call 1843 _linux_prepage_large_pages prepage large pages during allocation on Linux FALSE 1844 _disable_streams_diagnostics streams diagnostics 0 1845 _max_aq_persistent_queue_memory max aq persistent queue memory 10 1846 object_cache_optimal_size optimal size of the user session's object cache in bytes 102400 1847 object_cache_max_size_percent percentage of maximum size over optimal of the user session's object cache 10 1848 _no_objects no object features are used FALSE 1849 _kokli_cache_size Size limit of ADT Table Lookup Cache 128 1850 _kokln_current_read Make all LOB reads for this session 'current' reads FALSE 1851 session_max_open_files maximum number of open files allowed per session 10 1852 _domain_index_batch_size maximum number of rows from one call to domain index fetch routine 2000 1853 _domain_index_dml_batch_size maximum number of rows for one call to domain index dml routines 200 1854 _nchar_imp_conv should implicit conversion bewteen clob and nclob be allowed TRUE 1855 _insert_enable_hwm_brokered during parallel inserts high water marks are brokered TRUE 1856 _pgactx_cap_stacks capture stacks for setting pgactx FALSE 1857 open_links max # open links per session 4 1858 open_links_per_instance max # open links per instance 4 1859 _all_shared_dblinks treat all dblinks as shared 1860 _close_cached_open_cursors close cursors cached by PL/SQL at each commit FALSE 1861 _disable_savepoint_reset disable the fix for bug 1402161 FALSE 1862 commit_write transaction commit log write behaviour 1863 commit_wait transaction commit log wait behaviour 1864 commit_logging transaction commit log write behaviour 1865 _init_sql_file File containing SQL statements to execute upon database creation ?/rdbms/admin/sql.bsq 1866 optimizer_features_enable optimizer plan compatibility parameter 11.2.0.3 1867 fixed_date fixed SYSDATE value 1868 audit_trail enable system auditing DB 1869 sort_area_size size of in-memory sort work area 65536 1870 sort_area_retained_size size of in-memory sort work area retained between fetch calls 0 1871 _sort_multiblock_read_count multi-block read count for sort 2 1872 _shrunk_aggs_enabled enable use of variable sized buffers for non-distinct aggregates TRUE 1873 _sql_ncg_mode Optimization mode for SQL NCG OFF 1874 _cell_storidx_mode Cell Storage Index mode EVA 1875 _deferred_constant_folding_mode Deferred constant folding mode DEFAULT 1876 _rdbms_internal_fplib_raise_errors enable reraising of any exceptions in CELL FPLIB FALSE 1877 _rdbms_internal_fplib_enabled enable CELL FPLIB filtering within rdbms FALSE 1878 _cell_index_scan_enabled enable CELL processing of index FFS TRUE 1879 _cell_range_scan_enabled enable CELL processing of index range scans TRUE 1880 _cell_offload_virtual_columns enable offload of predicates on virtual columns to cells TRUE 1881 _cell_offload_predicate_reordering_enabled enable out-of-order SQL processing offload to cells FALSE 1882 _cell_offload_timezone enable timezone related SQL processing offload to cells TRUE 1883 _direct_read_decision_statistics_driven enable direct read decision based on optimizer statistics TRUE 1884 cell_offload_processing enable SQL processing offload to cells TRUE 1885 cell_offload_decryption enable SQL processing offload of encrypted data to cells TRUE 1886 cell_offload_parameters Additional cell offload parameters 1887 cell_offload_compaction Cell packet compaction strategy ADAPTIVE 1888 cell_offload_plan_display Cell offload explain plan display AUTO 1889 _shrunk_aggs_disable_threshold percentage of exceptions at which to switch to full length aggs 60 1890 _gby_onekey_enabled enable use of one comparison of all group by keys TRUE 1891 db_name database name specified in CREATE DATABASE orclasm 1892 db_unique_name Database Unique Name orclasm 1893 open_cursors max # cursors per session 65535 1894 ifile include file in init.ora 1895 sql_trace enable SQL trace FALSE 1896 os_authent_prefix prefix for auto-logon accounts ops$ 1897 _sql_connect_capability_table SQL Connect Capability Table (testing only) 1898 optimizer_mode optimizer mode ALL_ROWS 1899 _optimizer_mode_force force setting of optimizer mode for user recursive SQL also TRUE 1900 _explain_rewrite_mode allow additional messages to be generated during explain rewrite FALSE 1901 _query_rewrite_or_error allow query rewrite, if referenced tables are not dataless FALSE 1902 _sort_elimination_cost_ratio cost ratio for sort eimination under first_rows mode 0 1903 sql92_security require select privilege for searched update/delete FALSE 1904 _sql_connect_capability_override SQL Connect Capability Table Override 0 1905 blank_trimming blank trimming semantics parameter FALSE 1906 _always_anti_join always use this method for anti-join when possible CHOOSE 1907 _optimizer_null_aware_antijoin null-aware antijoin parameter TRUE 1908 _partition_view_enabled enable/disable partitioned views TRUE 1909 _always_star_transformation always favor use of star transformation FALSE 1910 _b_tree_bitmap_plans enable the use of bitmap plans for tables w. only B-tree indexes TRUE 1911 star_transformation_enabled enable the use of star transformation FALSE 1912 _column_elimination_off turn off predicate-only column elimination FALSE 1913 _cpu_to_io divisor for converting CPU cost to I/O cost 0 1914 _optimizer_extended_cursor_sharing optimizer extended cursor sharing UDO 1915 _optimizer_extended_cursor_sharing_rel optimizer extended cursor sharing for relational operators SIMPLE 1916 _optimizer_adaptive_cursor_sharing optimizer adaptive cursor sharing TRUE 1917 _optimizer_cost_model optimizer cost model CHOOSE 1918 _optimizer_undo_cost_change optimizer undo cost change 11.2.0.3 1919 _optimizer_system_stats_usage system statistics usage TRUE 1920 _optimizer_cache_stats cost with cache statistics FALSE 1921 _new_sort_cost_estimate enables the use of new cost estimate for sort TRUE 1922 _complex_view_merging enable complex view merging TRUE 1923 _simple_view_merging control simple view merging performed by the optimizer TRUE 1924 _unnest_subquery enables unnesting of complex subqueries TRUE 1925 _optimizer_unnest_all_subqueries enables unnesting of every type of subquery TRUE 1926 _eliminate_common_subexpr enables elimination of common sub-expressions TRUE 1927 _pred_move_around enables predicate move-around TRUE 1928 _convert_set_to_join enables conversion of set operator to join FALSE 1929 _px_bind_peek_sharing enables sharing of px cursors that were built using bind peeking TRUE 1930 _px_ual_serial_input enables new pq for UNION operators TRUE 1931 _px_minus_intersect enables pq for minus/interect operators TRUE 1932 _remove_aggr_subquery enables removal of subsumed aggregated subquery TRUE 1933 _distinct_view_unnesting enables unnesting of in subquery into distinct view FALSE 1934 _optimizer_push_down_distinct push down distinct from query block to table 0 1935 _optimizer_cost_based_transformation enables cost-based query transformation LINEAR 1936 _optimizer_squ_bottomup enables unnesting of subquery in a bottom-up manner TRUE 1937 _optimizer_cbqt_factor cost factor for cost-based query transformation 50 1938 _push_join_predicate enable pushing join predicate inside a view TRUE 1939 _push_join_union_view enable pushing join predicate inside a union all view TRUE 1940 _push_join_union_view2 enable pushing join predicate inside a union view TRUE 1941 _fast_full_scan_enabled enable/disable index fast full scan TRUE 1942 _optimizer_skip_scan_enabled enable/disable index skip scan TRUE 1943 _optimizer_join_sel_sanity_check enable/disable sanity check for multi-column join selectivity TRUE 1944 _optim_enhance_nnull_detection TRUE to enable index [fast] full scan more often TRUE 1945 _idl_conventional_index_maintenance enable conventional index maintenance for insert direct load TRUE 1946 _enable_cscn_caching enable commit SCN caching for all transactions FALSE 1947 _parallel_broadcast_enabled enable broadcasting of small inputs to hash and sort merge joins TRUE 1948 _px_broadcast_fudge_factor set the tq broadcasting fudge factor percentage 100 1949 _px_kxib_tracing turn on kxib tracing 0 1950 _px_granule_size default size of a rowid range granule (in KB) 1000000 1951 _px_xtgranule_size default size of a external table granule (in KB) 10000 1952 _xtbuffer_size buffer size in KB needed for populate/query operation 0 1953 parallel_degree_policy policy used to compute the degree of parallelism (MANUAL/LIMITED/AUTO) MANUAL 1954 _px_async_getgranule asynchronous get granule in the slave FALSE 1955 _px_min_granules_per_slave minimum number of rowid range granules to generate per slave 13 1956 _px_max_granules_per_slave maximum number of rowid range granules to generate per slave 100 1957 _px_no_stealing prevent parallel granule stealing in shared nothing environment FALSE 1958 _px_no_granule_sort prevent parallel partition granules to be sorted on size FALSE 1959 _px_proc_constrain reduce parallel_max_servers if greater than (processes - fudge) TRUE 1960 _px_freelist_latch_divisor Divide the computed number of freelists by this power of 2 2 1961 parallel_adaptive_multi_user enable adaptive setting of degree for multiple user streams TRUE 1962 parallel_threads_per_cpu number of parallel execution threads per CPU 2 1963 parallel_automatic_tuning enable intelligent defaults for parallel execution parameters FALSE 1964 _parallel_adaptive_max_users maximum number of users running with default DOP 4 1965 _parallel_cluster_cache_policy policy used for parallel execution on cluster(ADAPTIVE/CACHED) ADAPTIVE 1966 _parallel_load_balancing parallel execution load balanced slave allocation TRUE 1967 _parallel_load_bal_unit number of threads to allocate per instance 0 1968 _parallel_slave_acquisition_wait time(in seconds) to wait before retrying slave acquisition 1 1969 parallel_io_cap_enabled enable capping DOP by IO bandwidth FALSE 1970 _px_io_system_bandwidth total IO system bandwidth in MB/sec for computing DOP 0 1971 _px_io_process_bandwidth IO process bandwidth in MB/sec for computing DOP 200 1972 _pdml_slaves_diff_part slaves start on different partition when doing index maint TRUE 1973 _pdml_gim_sampling control separation of global index maintenance for PDML 5000 1974 _pdml_gim_staggered slaves start on different index when doing index maint FALSE 1975 _px_dynamic_opt turn off/on restartable qerpx dynamic optimization TRUE 1976 _px_dynamic_sample_size num of samples for restartable qerpx dynamic optimization 50 1977 _px_rownum_pd turn off/on parallel rownum pushdown optimization TRUE 1978 _predicate_elimination_enabled allow predicate elimination if set to TRUE TRUE 1979 _groupby_nopushdown_cut_ratio groupby nopushdown cut ratio 3 1980 _groupby_orderby_combine groupby/orderby don't combine threshold 5000 1981 _temp_tran_block_threshold number of blocks for a dimension before we temp transform 100 1982 _temp_tran_cache determines if temp table is created with cache option TRUE 1983 _ordered_semijoin enable ordered semi-join subquery TRUE 1984 _always_semi_join always use this method for semi-join when possible CHOOSE 1985 _ordered_nested_loop enable ordered nested loop costing TRUE 1986 _nested_loop_fudge nested loop fudge 100 1987 _project_view_columns enable projecting out unreferenced columns of a view TRUE 1988 _no_or_expansion OR expansion during optimization disabled FALSE 1989 _optimizer_max_permutations optimizer maximum join permutations per query block 2000 1990 optimizer_index_cost_adj optimizer index cost adjustment 100 1991 optimizer_index_caching optimizer percent index caching 0 1992 _system_index_caching optimizer percent system index caching 0 1993 _serial_direct_read enable direct read in serial auto 1994 _disable_datalayer_sampling disable datalayer sampling FALSE 1995 _disable_sample_io_optim disable row sampling IO optimization FALSE 1996 _sample_rows_per_block number of rows per block used for sampling IO optimization 4 1997 _ncmb_readahead_enabled enable multi-block readahead for an index scan 0 1998 _ncmb_readahead_tracing turn on multi-block readahead tracing 0 1999 _nlj_batching_enabled enable batching of the RHS IO in NLJ 1 2000 _nlj_batching_misses_enabled enable exceptions for buffer cache misses 1 2001 _ioq_fanin_multiplier IOQ miss count before a miss exception 2 2002 _index_prefetch_factor index prefetching factor 100 2003 query_rewrite_enabled allow rewrite of queries using materialized views if enabled TRUE 2004 query_rewrite_integrity perform rewrite using materialized views with desired integrity enforced 2005 _query_cost_rewrite perform the cost based rewrite with materialized views TRUE 2006 _query_rewrite_2 perform query rewrite before&after or only after view merging TRUE 2007 _query_rewrite_1 perform query rewrite before&after or only before view merging TRUE 2008 _query_rewrite_fudge cost based query rewrite with MVs fudge factor 90 2009 _query_rewrite_expression rewrite with cannonical form for expressions TRUE 2010 _query_rewrite_jgmigrate mv rewrite with jg migration TRUE 2011 _query_rewrite_fpc mv rewrite fresh partition containment TRUE 2012 _query_rewrite_drj mv rewrite and drop redundant joins TRUE 2013 _query_rewrite_maxdisjunct query rewrite max disjuncts 257 2014 _query_rewrite_vop_cleanup prune frocol chain before rewrite after view-merging TRUE 2015 _mmv_query_rewrite_enabled allow rewrites with multiple MVs and/or base tables TRUE 2016 _bt_mmv_query_rewrite_enabled allow rewrites with multiple MVs and base tables TRUE 2017 _add_stale_mv_to_dependency_list add stale mv to dependency list TRUE 2018 _max_rwgs_groupings maximum no of groupings on materialized views 8192 2019 _full_pwise_join_enabled enable full partition-wise join when TRUE TRUE 2020 _partial_pwise_join_enabled enable partial partition-wise join when TRUE TRUE 2021 _slave_mapping_enabled enable slave mapping when TRUE TRUE 2022 _slave_mapping_group_size force the number of slave group in a slave mapper 0 2023 _local_communication_costing_enabled enable local communication costing when TRUE TRUE 2024 _local_communication_ratio set the ratio between global and local communication (0..100) 50 2025 _parallelism_cost_fudge_factor set the parallelism cost fudge factor 350 2026 _left_nested_loops_random enable random distribution method for left of nestedloops TRUE 2027 _improved_row_length_enabled enable the improvements for computing the average row length TRUE 2028 _px_index_sampling parallel query sampling for index create (100000 = 100%) 200 2029 _index_join_enabled enable the use of index joins TRUE 2030 _use_nosegment_indexes use nosegment indexes in explain plan FALSE 2031 _enable_type_dep_selectivity enable type dependent selectivity estimates TRUE 2032 _sqlexec_progression_cost sql execution progression monitoring cost threshold 1000 2033 _improved_outerjoin_card improved outer-join cardinality calculation TRUE 2034 _optimizer_adjust_for_nulls adjust selectivity for null values TRUE 2035 _optimizer_degree force the optimizer to use the same degree of parallelism 0 2036 _use_column_stats_for_function enable the use of column statistics for DDP functions TRUE 2037 _subquery_pruning_cost_factor subquery pruning cost factor 20 2038 _subquery_pruning_reduction subquery pruning reduction factor 50 2039 _subquery_pruning_enabled enable the use of subquery predicates to perform pruning TRUE 2040 _subquery_pruning_mv_enabled enable the use of subquery predicates with MVs to perform pruning FALSE 2041 _parallel_txn_global enable parallel_txn hint with updates and deletes FALSE 2042 _or_expand_nvl_predicate enable OR expanded plan for NVL/DECODE predicate TRUE 2043 _like_with_bind_as_equality treat LIKE predicate with bind as an equality predicate FALSE 2044 _table_scan_cost_plus_one bump estimated full table scan and index ffs cost by one TRUE 2045 _cost_equality_semi_join enables costing of equality semi-join TRUE 2046 _default_non_equality_sel_check sanity check on default selectivity for like/range predicate TRUE 2047 _new_initial_join_orders enable initial join orders based on new ordering heuristics TRUE 2048 _oneside_colstat_for_equijoins sanity check on default selectivity for like/range predicate TRUE 2049 _column_tracking_level column usage tracking 1 2050 _optim_peek_user_binds enable peeking of user binds TRUE 2051 _mv_refresh_selections create materialized views with selections and fast refresh TRUE 2052 _cursor_plan_enabled enable collection and display of cursor plans TRUE 2053 _minimal_stats_aggregation prohibit stats aggregation at compile/partition maintenance time TRUE 2054 _mv_refresh_eut refresh materialized views using EUT(partition)-based algorithm TRUE 2055 _mav_refresh_consistent_read refresh materialized views using consistent read snapshot TRUE 2056 _mav_refresh_opt optimizations during refresh of materialized views 0 2057 _mav_refresh_unionall_tables # tables for union all expansion during materialized view refresh 3 2058 _mv_refresh_delta_fraction delta mv as fractional percentage of size of mv 10 2059 _force_temptables_for_gsets executes concatenation of rollups using temp tables FALSE 2060 pga_aggregate_target Target size for the aggregate PGA memory consumed by the instance 134217728 2061 __pga_aggregate_target Current target size for the aggregate PGA memory consumed 134217728 2062 _pga_max_size Maximum size of the PGA memory for one process 209715200 2063 workarea_size_policy policy used to size SQL working areas (MANUAL/AUTO) AUTO 2064 _smm_auto_min_io_size Minimum IO size (in KB) used by sort/hash-join in auto mode 56 2065 _smm_auto_max_io_size Maximum IO size (in KB) used by sort/hash-join in auto mode 248 2066 _smm_auto_cost_enabled if TRUE, use the AUTO size policy cost functions TRUE 2067 _smm_control provides controls on the memory manager 0 2068 _smm_trace Turn on/off tracing for SQL memory manager 0 2069 _smm_min_size minimum work area size in auto mode 131 2070 _smm_max_size maximum work area size in auto mode (serial) 26214 2071 _smm_px_max_size maximum work area size in auto mode (global) 65536 2072 _smm_retain_size work area retain size in SGA for shared server sessions (0 for AUTO) 0 2073 _smm_bound overwrites memory manager automatically computed bound 0 2074 _smm_advice_log_size overwrites default size of the PGA advice workarea history log 0 2075 _smm_advice_enabled if TRUE, enable v$pga_advice TRUE 2076 _gs_anti_semi_join_allowed enable anti/semi join for the GS query TRUE 2077 _mv_refresh_use_stats pass cardinality hints to refresh queries FALSE 2078 _mv_refresh_use_no_merge use no_merge hint in queries TRUE 2079 _mv_refresh_use_hash_sj use hash_sj hint in queries TRUE 2080 _mv_refresh_no_idx_rebuild avoid index rebuild as part of the MV refresh FALSE 2081 _optim_new_default_join_sel improves the way default equijoin selectivity are computed TRUE 2082 _optimizer_dyn_smp_blks number of blocks for optimizer dynamic sampling 32 2083 optimizer_dynamic_sampling optimizer dynamic sampling 2 2084 _pre_rewrite_push_pred push predicates into views before rewrite TRUE 2085 _optimizer_new_join_card_computation compute join cardinality using non-rounded input values TRUE 2086 _mav_refresh_double_count_prevented materialized view MAV refreshes avoid double counting FALSE 2087 _pct_refresh_double_count_prevented materialized view PCT refreshes avoid double counting TRUE 2088 _mv_refresh_new_setup_disabled materialized view MV refresh new setup disabling FALSE 2089 _load_without_compile Load PL/SQL or Database objects without compilation NONE 2090 _precompute_gid_values precompute gid values and copy them before returning a row TRUE 2091 _union_rewrite_for_gs expand queries with GSets into UNIONs for rewrite YES_GSET_MVS 2092 _nested_mv_fast_oncommit_enabled nested MV refresh fast on commit allowed TRUE 2093 _generalized_pruning_enabled controls extensions to partition pruning for general predicates TRUE 2094 _rowsource_execution_statistics if TRUE, Oracle will collect rowsource statistics FALSE 2095 _rowsource_profiling_statistics if TRUE, Oracle will capture active row sources in v$active_session_history TRUE 2096 _rowsource_statistics_sampfreq frequency of rowsource statistic sampling (must be a power of 2) 128 2097 _bitmap_or_improvement_enabled controls extensions to partition pruning for general predicates TRUE 2098 _intrapart_pdml_enabled Enable intra-partition updates/deletes TRUE 2099 _force_tmp_segment_loads Force tmp segment loads FALSE 2100 _force_slave_mapping_intra_part_loads Force slave mapping for intra partition loads FALSE 2101 _intrapart_pdml_randomlocal_enabled Enable intra-partition updates/deletes with random local dist TRUE 2102 _optim_adjust_for_part_skews adjust stats for skews across partitions TRUE 2103 _optimizer_compute_index_stats force index stats collection on index creation/rebuild TRUE 2104 _optimizer_autostats_job enable/disable auto stats collection job TRUE 2105 _optimizer_push_pred_cost_based use cost-based query transformation for push pred optimization TRUE 2106 _optimizer_extend_jppd_view_types join pred pushdown on group-by, distinct, semi-/anti-joined view TRUE 2107 _optimizer_filter_pred_pullup use cost-based flter predicate pull up transformation TRUE 2108 _optimizer_connect_by_cost_based use cost-based transformation for connect by TRUE 2109 _optimizer_connect_by_combine_sw combine no filtering connect by and start with TRUE 2110 _optimizer_connect_by_elim_dups allow connect by to eliminate duplicates from input TRUE 2111 _connect_by_use_union_all use union all for connect by TRUE 2112 _force_datefold_trunc force use of trunc for datefolding rewrite FALSE 2113 statistics_level statistics level TYPICAL 2114 _array_update_vector_read_enabled Enable array update vector read FALSE 2115 _two_pass_reverse_polish_enabled uses two-pass reverse polish alg. to generate canonical forms TRUE 2116 _expand_aggregates expand aggregates TRUE 2117 _dump_common_subexpressions dump common subexpressions FALSE 2118 _spr_use_hash_table use hash table for spreadsheet FALSE 2119 _spr_use_AW_AS enable AW for hash table in spreadsheet TRUE 2120 _dump_connect_by_loop_data dump connect by loop error message into trc file FALSE 2121 _column_compression_factor Column compression ratio 0 2122 _dml_monitoring_enabled enable modification monitoring TRUE 2123 _px_slaves_share_cursors slaves share cursors with QC 0 2124 _fic_algorithm_set Set Frequent Itemset Counting Algorithm automatic 2125 _fic_area_size size of Frequent Itemset Counting work area 131072 2126 _fic_max_length Frequent Itemset Counting Maximum Itemset Length 20 2127 _fic_min_bmsize Frequent Itemset Counting Minimum BITMAP Size 1024 2128 _dtree_area_size size of Decision Tree Classification work area 131072 2129 _dtree_pruning_enabled Decision Tree Pruning Enabled TRUE 2130 _dtree_compressbmp_enabled Decision Tree Using Compressed Bitmaps Enabled TRUE 2131 _dtree_binning_enabled Decision Tree Binning Enabled TRUE 2132 _dtree_max_surrogates maximum number of surrogates 1 2133 _dtree_bintest_id Decision Tree Binning Test ID 0 2134 _right_outer_hash_enable Right Outer/Semi/Anti Hash Enabled TRUE 2135 _optimizer_mjc_enabled enable merge join cartesian TRUE 2136 _optimizer_sortmerge_join_enabled enable/disable sort-merge join method TRUE 2137 _cursor_bind_capture_area_size maximum size of the cursor bind capture area 400 2138 cursor_bind_capture_destination Allowed destination for captured bind variables memory+disk 2139 _flush_plan_in_awr_sql Plan is being flushed from an AWR flush SQL 0 2140 _cursor_bind_capture_interval interval (in seconds) between two bind capture for a cursor 900 2141 _dump_cursor_heap_sizes dump comp/exec heap sizes to tryace file FALSE 2142 _projection_pushdown projection pushdown TRUE 2143 _projection_pushdown_debug level for projection pushdown debugging 0 2144 _px_compilation_debug debug level for parallel compilation 0 2145 _px_compilation_trace tracing level for parallel compilation 0 2146 _trace_virtual_columns trace virtual columns exprs FALSE 2147 _replace_virtual_columns replace expressions with virtual columns TRUE 2148 _virtual_column_overload_allowed overload virtual columns expression TRUE 2149 _kdt_buffering control kdt buffering for conventional inserts TRUE 2150 _disable_parallel_conventional_load Disable parallel conventional loads FALSE 2151 _ltc_trace tracing level for load table conventional 0 2152 _fic_outofmem_candidates Frequent Itemset Counting Out Of Memory Candidates Generation FALSE 2153 _print_refresh_schedule enable dbms_output of materialized view refresh schedule false 2154 _optimizer_undo_changes undo changes to query optimizer FALSE 2155 _optimizer_percent_parallel optimizer percent parallel 101 2156 _optimizer_search_limit optimizer search limit 5 2157 skip_unusable_indexes skip unusable indexes if set to TRUE TRUE 2158 _mv_refresh_costing refresh decision based on cost or on rules rule 2159 _mv_refresh_ana what percent to analyze after complete/PCT refresh 0 2160 _cache_stats_monitor if TRUE, enable cache stats monitoring FALSE 2161 _sta_control SQL Tuning Advisory control parameter 0 2162 _enable_automatic_sqltune Automatic SQL Tuning Advisory enabled parameter TRUE 2163 _sql_analyze_enable_auto_txn SQL Analyze Autonomous Transaction control parameter FALSE 2164 _ds_enable_auto_txn Dynamic Sampling Service Autonomous Transaction control parameter FALSE 2165 _sql_analyze_parse_model SQL Analyze Parse Model control parameter 2 2166 _ds_parse_model Dynamic Sampling Service Parse Model control parameter 2 2167 _kes_parse_model SQL Tune/SPA KES Layer Parse Model control parameter 2 2168 _ds_iocount_iosize Dynamic Sampling Service defaults: #IOs and IO Size 6553664 2169 _mv_refsched_timeincr proportionality constant for dop vs. time in MV refresh 300000 2170 _spr_push_pred_refspr push predicates through reference spreadsheet TRUE 2171 _optimizer_block_size standard block size used by optimizer 8192 2172 _spr_max_rules maximum number of rules in sql spreadsheet 10000 2173 _idxrb_rowincr proportionality constant for dop vs. rows in index rebuild 100000000 2174 _hj_bit_filter_threshold hash-join bit filtering threshold (0 always enabled) 50 2175 _optimizer_save_stats enable/disable saving old versions of optimizer stats TRUE 2176 _optimizer_cost_filter_pred enables costing of filter predicates in IO cost model FALSE 2177 _optimizer_correct_sq_selectivity force correct computation of subquery selectivity TRUE 2178 _allow_commutativity allow for commutativity of +, * when comparing expressions TRUE 2179 _mv_refresh_rebuild_percentage minimum percentage change required in MV to force an indexrebuild 10 2180 _qa_control Oracle internal parameter to control QA 0 2181 _qa_lrg_type Oracle internal parameter to specify QA lrg type 0 2182 _mv_refresh_force_parallel_query force materialized view refreshes to use parallel query 0 2183 _enable_fast_ref_after_mv_tbs enable fast refresh after move tablespace FALSE 2184 _optim_dict_stats_at_db_cr_upg enable/disable dictionary stats gathering at db create/upgrade TRUE 2185 _optimizer_dim_subq_join_sel use join selectivity in choosing star transformation dimensions TRUE 2186 _optimizer_disable_strans_sanity_checks disable star transformation sanity checks 0 2187 _allow_level_without_connect_by allow level without connect by FALSE 2188 _optimizer_ignore_hints enables the embedded hints to be ignored FALSE 2189 _optimizer_random_plan optimizer seed value for random plans 0 2190 _optimizer_ceil_cost CEIL cost in CBO TRUE 2191 _delay_index_maintain delays index maintenance until after MV is refreshed TRUE 2192 _query_rewrite_setopgrw_enable perform general rewrite using set operator summaries TRUE 2193 _cursor_plan_hash_version version of cursor plan hash value 1 2194 _disable_function_based_index disable function-based index matching FALSE 2195 _optimizer_invalidation_period time window for invalidation of cursors of analyzed objects 18000 2196 _px_net_msg_cost CPU cost to send a PX message over the internconnect 10000 2197 _px_loc_msg_cost CPU cost to send a PX message via shared memory 1000 2198 _smm_freeable_retain value in KB of the instance freeable PGA memory to retain 5120 2199 _cursor_plan_unparse_enabled enables/disables using unparse to build projection/predicates TRUE 2200 _kill_java_threads_on_eoc Kill Java threads and do sessionspace migration at end of call FALSE 2201 _optimizer_join_order_control controls the optimizer join order search algorithm 3 2202 _px_nss_planb enables or disables NSS Plan B reparse with outline TRUE 2203 _bloom_filter_enabled enables or disables bloom filter TRUE 2204 _bloom_filter_debug debug level for bloom filtering 0 2205 _bloom_vector_elements number of elements in a bloom filter vector 0 2206 _bloom_predicate_enabled enables or disables bloom filter predicate pushdown TRUE 2207 _bloom_predicate_pushdown_to_storage enables or disables bloom filter predicate pushdown to storage TRUE 2208 _bloom_folding_enabled Enable folding of bloom filter TRUE 2209 _bloom_folding_density bloom filter folding density lower bound 16 2210 _bloom_folding_min bloom filter folding size lower bound 131072 2211 _bloom_pushing_max bloom filter pushing size upper bound 512 2212 _bloom_max_size bloom filter maximum size in bytes 268435456 2213 _enable_refresh_schedule enable or disable MV refresh scheduling (revert to 9.2 behavior) TRUE 2214 _optimizer_cartesian_enabled optimizer cartesian join enabled TRUE 2215 _optimizer_starplan_enabled optimizer star plan enabled TRUE 2216 _optimizer_join_elimination_enabled optimizer join elimination enabled TRUE 2217 _gby_hash_aggregation_enabled enable group-by and aggregation using hash scheme TRUE 2218 _extended_pruning_enabled do runtime pruning in iterator if set to TRUE TRUE 2219 _globalindex_pnum_filter_enabled enables filter for global index with partition extended syntax TRUE 2220 _sql_model_unfold_forloops specifies compile-time unfolding of sql model forloops RUN_TIME 2221 _enable_dml_lock_escalation enable dml lock escalation against partitioned tables if TRUE TRUE 2222 _plsql_cache_enable PL/SQL Function Cache Enabled TRUE 2223 _disable_fast_aggregation fast aggregation FALSE 2224 _disable_adaptive_shrunk_aggregation adaptive shrunk aggregation FALSE 2225 _plsql_minimum_cache_hit_percent plsql minimum cache hit percentage required to keep caching active 20 2226 _plan_outline_data explain plan outline data enabled TRUE 2227 _outline_bitmap_tree BITMAP_TREE hint enabled in outline TRUE 2228 _drop_table_optimization_enabled reduce SGA memory use during drop of a partitioned table TRUE 2229 _very_large_partitioned_table very_large_partitioned_table 1024 2230 _drop_table_granule drop_table_granule 256 2231 _xpl_trace Explain Plan tracing parameter 0 2232 _dm_max_shared_pool_pct max percentage of the shared pool to use for a mining model 1 2233 _optimizer_multiple_cenv generate and run plans using several compilation environments 2234 _kql_subheap_trace tracing level for library cache subheap level pins 0 2235 _optimizer_cost_hjsmj_multimatch add cost of generating result set when #rows per key > 1 TRUE 2236 _optimizer_transitivity_retain retain equi-join pred upon transitive equality pred generation TRUE 2237 optimizer_secure_view_merging optimizer secure view merging and predicate pushdown/movearound TRUE 2238 _px_pwg_enabled parallel partition wise group by enabled TRUE 2239 _sql_hash_debug Hash value of the SQL statement to debug 0 2240 _mv_rolling_inv create/alter mv uses rolling cursor invalidation instead of immediate FALSE 2241 _smm_isort_cap maximum work area for insertion sort(v1) 102400 2242 _optimizer_cbqt_no_size_restriction disable cost based transformation query size restriction TRUE 2243 _windowfunc_optimization_settings settings for window function optimizations 0 2244 _truncate_optimization_enabled do truncate optimization if set to TRUE TRUE 2245 _optimizer_enhanced_filter_push push filters before trying cost-based query transformation TRUE 2246 _compilation_call_heap_extent_size Size of the compilation call heaps extents 16384 2247 _xpl_peeked_binds_log_size maximum bytes for logging peeked bind values for V$SQL_PLAN (0 = OFF) 8192 2248 _rowsrc_trace_level Row source tree tracing level 0 2249 _optimizer_rownum_pred_based_fkr enable the use of first K rows due to rownum predicate TRUE 2250 _optimizer_better_inlist_costing enable improved costing of index access using in-list(s) ALL 2251 _optimizer_self_induced_cache_cost account for self-induced caching FALSE 2252 _optimizer_min_cache_blocks set minimum cached blocks 10 2253 _enable_exchange_validation_using_check use check constraints on the table for validation TRUE 2254 _optimizer_or_expansion control or expansion approach used DEPTH 2255 _optimizer_outer_to_anti_enabled Enable transformation of outer-join to anti-join if possible TRUE 2256 _optimizer_order_by_elimination_enabled Eliminates order bys from views before query transformation TRUE 2257 _optimizer_star_tran_in_with_clause enable/disable star transformation in with clause queries TRUE 2258 _optimizer_sortmerge_join_inequality enable/disable sort-merge join using inequality predicates TRUE 2259 _selfjoin_mv_duplicates control rewrite self-join algorithm TRUE 2260 _dimension_skip_null control dimension skip when null feature TRUE 2261 _force_rewrite_enable control new query rewrite features FALSE 2262 _optimizer_complex_pred_selectivity enable selectivity estimation for builtin functions TRUE 2263 _build_deferred_mv_skipping_mvlog_update DEFERRED MV creation skipping MV log setup update TRUE 2264 _bloom_pruning_enabled Enable partition pruning using bloom filtering TRUE 2265 _query_mmvrewrite_maxpreds query mmv rewrite maximum number of predicates per disjunct 10 2266 _query_mmvrewrite_maxintervals query mmv rewrite maximum number of intervals per disjunct 5 2267 _query_mmvrewrite_maxinlists query mmv rewrite maximum number of in-lists per disjunct 5 2268 _query_mmvrewrite_maxdmaps query mmv rewrite maximum number of dmaps per query disjunct 10 2269 _query_mmvrewrite_maxcmaps query mmv rewrite maximum number of cmaps per dmap in query disjunct 20 2270 _query_mmvrewrite_maxregperm query mmv rewrite maximum number of region permutations 512 2271 _row_shipping_threshold row shipping column selection threshold 80 2272 _row_shipping_explain enable row shipping explain plan support FALSE 2273 _query_mmvrewrite_maxqryinlistvals query mmv rewrite maximum number of query in-list values 500 2274 _first_k_rows_dynamic_proration enable the use of dynamic proration of join cardinalities TRUE 2275 _optimizer_aw_stats_enabled Enables statistcs on AW olap_table table function TRUE 2276 _enable_row_shipping use the row shipping optimization for wide table selects TRUE 2277 _optimizer_skip_scan_guess consider index skip scan for predicates with guessed selectivity FALSE 2278 _optimizer_distinct_elimination Eliminates redundant SELECT DISTNCT's TRUE 2279 _add_col_optim_enabled Allows new add column optimization TRUE 2280 _optimizer_multi_level_push_pred consider join-predicate pushdown that requires multi-level pushdown to base table TRUE 2281 ddl_lock_timeout timeout to restrict the time that ddls wait for dml lock 0 2282 _enable_ddl_wait_lock use this to turn off ddls with wait semantics TRUE 2283 deferred_segment_creation defer segment creation to first insert TRUE 2284 _optimizer_group_by_placement consider group-by placement optimization TRUE 2285 _optimizer_distinct_placement consider distinct placement optimization TRUE 2286 _optimizer_coalesce_subqueries consider coalescing of subqueries optimization TRUE 2287 _optimizer_enable_density_improvements use improved density computation for selectivity estimation TRUE 2288 _optimizer_rownum_bind_default Default value to use for rownum bind 10 2289 _enable_query_rewrite_on_remote_objs mv rewrite on remote table/view TRUE 2290 _enable_scn_wait_interface use this to turn off scn wait interface in kta TRUE 2291 optimizer_use_pending_statistics Control whether to use optimizer pending statistics FALSE 2292 _optimizer_improve_selectivity improve table and partial overlap join selectivity computation TRUE 2293 _optimizer_aw_join_push_enabled Enables AW Join Push optimization TRUE 2294 _kks_free_cursor_stat_pct percentage of cursor stats buckets to scan on each load, in 1/10th of a percent 10 2295 _cvw_enable_weak_checking enable weak view checking TRUE 2296 optimizer_capture_sql_plan_baselines automatic capture of SQL plan baselines for repeatable statements FALSE 2297 optimizer_use_sql_plan_baselines use of SQL plan baselines for captured sql statements FALSE 2298 _enable_online_index_without_s_locking Allow online index creation algorithm without S DML lock TRUE 2299 _sqlmon_threshold CPU/IO time threshold before a statement is monitored. 0 is disabled 5 2300 _sqlmon_max_plan Maximum number of plans entry that can be monitored. Defaults to 20 per CPU 40 2301 _sqlmon_max_planlines Number of plan lines beyond which a plan cannot be monitored 300 2302 _sqlmon_recycle_time Minimum time (in s) to wait before a plan entry can be recycled 60 2303 _sqlmon_binds_xml_format format of column binds_xml in [G]V$SQL_MONITOR default 2304 _optimizer_native_full_outer_join execute full outer join using native implementaion FORCE 2305 _optimizer_enable_extended_stats use extended statistics for selectivity estimation TRUE 2306 _direct_path_insert_features disable direct path insert features 0 2307 _optimizer_free_transformation_heap free transformation subheap after each transformation TRUE 2308 _pivot_implementation_method pivot implementation method CHOOSE 2309 _optimizer_use_subheap Enables physical optimizer subheap TRUE 2310 _optimizer_or_expansion_subheap Use subheap for optimizer or-expansion TRUE 2311 _optimizer_star_trans_min_cost optimizer star transformation minimum cost 0 2312 _optimizer_star_trans_min_ratio optimizer star transformation minimum ratio 0 2313 _with_subquery WITH subquery transformation OPTIMIZER 2314 _optimizer_reuse_cost_annotations reuse cost annotations during cost-based query transformation TRUE 2315 _optimizer_interleave_jppd interleave join predicate pushdown during CBQT TRUE 2316 _optimizer_fkr_index_cost_bias Optimizer index bias over FTS/IFFS under first K rows mode 10 2317 _px_dump_12805_source enables or disables tracing of 12805 signal source TRUE 2318 parallel_min_time_threshold threshold above which a plan is a candidate for parallelization (in seconds) AUTO 2319 _parallel_time_unit unit of work used to derive the degree of parallelism (in seconds) 10 2320 parallel_degree_limit limit placed on degree of parallelism CPU 2321 parallel_force_local force single instance execution FALSE 2322 _parallel_scalability Parallel scalability criterion for parallel execution 50 2323 _parallel_syspls_obey_force TRUE to obey force parallel query/dml/ddl under System PL/SQL TRUE 2324 _optimizer_nested_rollup_for_gset number of groups above which we use nested rollup exec for gset 100 2325 _plan_verify_local_time_limit Local time limit to use for an individual plan verification 0 2326 _plan_verify_improvement_margin Performance improvement criterion for evolving plan baselines 150 2327 _evolve_plan_baseline_report_level Level of detail to show in plan verification/evolution report typical 2328 _statistics_based_srf_enabled enable/disable the use of statistics for storage reduction factor TRUE 2329 _selectivity_for_srf_enabled enable/disable selectivity for storage reduction factor FALSE 2330 optimizer_use_invisible_indexes Usage of invisible indexes (TRUE/FALSE) FALSE 2331 _optimizer_extended_stats_usage_control controls the optimizer usage of extended stats 192 2332 _sql_plan_management_control controls various internal SQL Plan Management algorithms 0 2333 _optimizer_fast_pred_transitivity use fast algorithm to generate transitive predicates TRUE 2334 _optimizer_fast_access_pred_analysis use fast algorithm to traverse predicates for physical optimizer TRUE 2335 _optimizer_multiple_cenv_report control what to report in trace file when run in multi-plan mode result 2336 _optimizer_multiple_cenv_stmt control the types of statements that are run in multi-plan mode query 2337 _parallel_cluster_cache_pct max percentage of the global buffer cache to use for affinity 80 2338 _px_granule_batch_size default size of a batch of granules 10 2339 _optimizer_instance_count force the optimizer to use the specified number of instances 0 2340 _block_sample_readahead_prob_threshold controls readahead value during block sampling 10 2341 _mv_generalized_oj_refresh_opt enable/disable new algorithm for MJV with generalized outer joins TRUE 2342 _parallel_optimization_phase_for_local parallel optimization phase when all slaves are local FALSE 2343 _enable_schema_synonyms enable DDL operations (e.g. creation) involving schema synonyms FALSE 2344 _enable_rename_user enable RENAME-clause using ALTER USER statement FALSE 2345 _mv_refresh_enhanced_dml_detection enable enhanced detection of DML types from MV log ON_RC 2346 _mv_refresh_pkfk_relationship_opt control MV refresh based on the use of PK-FK relationships TRUE 2347 _mv_refresh_pkfk_data_units_opt control MV refresh based on the assumption of PK-FK data units auto 2348 _optimizer_unnest_disjunctive_subq Unnesting of disjunctive subqueries (TRUE/FALSE) TRUE 2349 _optimizer_unnest_corr_set_subq Unnesting of correlated set subqueries (TRUE/FALSE) TRUE 2350 _optimizer_distinct_agg_transform Transforms Distinct Aggregates to non-distinct aggregates TRUE 2351 _aggregation_optimization_settings settings for aggregation optimizations 0 2352 _arch_compress_checksums enable/disable row checksums for archive compressed blocks FALSE 2353 _optimizer_eliminate_filtering_join optimizer filtering join elimination enabled TRUE 2354 dst_upgrade_insert_conv Enables/Disables internal conversions during DST upgrade TRUE 2355 _create_table_in_any_cluster allow creation of table in a cluster not owned by the user FALSE 2356 _dsc_feature_level controls the feature level for deferred segment creation 0 2357 _parallel_statement_queuing parallel statement queuing enabled FALSE 2358 _parallel_conservative_queuing conservative parallel statement queuing FALSE 2359 parallel_servers_target instance target in terms of number of parallel servers 32 2360 _px_load_factor weighted autodop load factor 300 2361 _dml_frequency_tracking Control DML frequency tracking FALSE 2362 _dml_frequency_tracking_advance Control automatic advance and broadcast of DML frequencies TRUE 2363 _dml_frequency_tracking_slots Number of slots to use for DML frequency tracking 4 2364 _dml_frequency_tracking_slot_time Time length of each slot for DML frequency tracking 15 2365 _px_gim_factor weighted autodop global index maintenance factor 100 2366 _add_trim_for_nlssort add trimming for fixed char semantics TRUE 2367 _optimizer_connect_by_cb_whr_only use cost-based transformation for whr clause in connect by FALSE 2368 _optimizer_join_factorization use join factorization transformation TRUE 2369 _optimizer_force_CBQT force CBQT transformation regardless of cost 2370 _optimizer_use_cbqt_star_transformation use rewritten star transformation using cbqt framework TRUE 2371 _rep_base_path base path for EM reports in database 2372 _optimizer_table_expansion consider table expansion transformation TRUE 2373 _and_pruning_enabled allow partition pruning based on multiple mechanisms TRUE 2374 _dml_batch_error_limit number or error handles allocated for DML in batch mode 0 2375 _noseg_for_unusable_index_enabled no segments for unusable indexes if set to TRUE TRUE 2376 _slave_mapping_skew_ratio maximum skew before slave mapping is disabled 2 2377 _px_index_sampling_objsize parallel query sampling for index create based on object size TRUE 2378 _sql_compatibility sql compatability bit vector 0 2379 _optimizer_use_feedback optimizer use feedback TRUE 2380 _optimizer_feedback_control controls the optimizer feedback framework 2381 _optimizer_try_st_before_jppd try Star Transformation before Join Predicate Push Down TRUE 2382 _parallel_blackbox_size parallel execution blackbox bucket size 16384 2383 _parallel_blackbox_enabled parallel execution blackbox enabled TRUE 2384 _parallel_load_publish_threshold diffrence in percentage controlling px load propagation 10 2385 _px_partition_scan_enabled enables or disables parallel partition-based scan TRUE 2386 _px_partition_scan_threshold least number of partitions per slave to start partition-based scan 64 2387 _parallel_heartbeat_snapshot_interval interval of snapshot to track px msging between instances 2 2388 _parallel_heartbeat_snapshot_max maximum number of historical snapshots archived 128 2389 _bloom_pushing_total_max bloom filter combined pushing size (DOP x filter size) upper bound 262144 2390 _optimizer_false_filter_pred_pullup optimizer false predicate pull up transformation TRUE 2391 _px_granule_randomize enables or disables randomization of parallel scans rowid granules TRUE 2392 _optimizer_purge_stats_iteration_row_count number of rows to be deleted at each iteration of the stats purging process 10000 2393 _mv_refresh_update_analysis materialized view refresh using update analysis TRUE 2394 _ptn_cache_threshold flags and threshold to control partition metadata caching 0 2395 _bloom_minmax_enabled enable or disable bloom min max filtering TRUE 2396 _optimizer_enable_table_lookup_by_nl consider table lookup by nl transformation TRUE 2397 _px_max_message_pool_pct percentage of shared pool for px msg buffers range [5,60] 40 2398 _px_chunklist_count_ratio ratio of the number of chunk lists to the default DOP per instance 8 2399 _px_hold_time hold px at execution time (unit: second) 0 2400 _cdc_subscription_owner Change Data Capture subscription_owner 2401 _optimizer_filter_pushdown enable/disable filter predicate pushdown TRUE 2402 _px_round_robin_rowcnt round robin row count to enq to next slave 1000 2403 _optimizer_outer_join_to_inner enable/disable outer to inner join conversion TRUE 2404 _optimizer_full_outer_join_to_outer enable/disable full outer to left outer join conversion TRUE 2405 _px_numa_support_enabled enable/disable PQ NUMA support TRUE 2406 _px_numa_stealing_enabled enable/disable PQ granule stealing across NUMA nodes TRUE 2407 _px_adaptive_offload_threshold threshold (GB/s) for PQ adaptive offloading of granules 10 2408 _px_adaptive_offload_pecentage percentage for PQ adaptive offloading of granules 0 2409 sec_protocol_error_trace_action TTC protocol error action TRACE 2410 sec_protocol_error_further_action TTC protocol error continue action CONTINUE 2411 sec_max_failed_login_attempts maximum number of failed login attempts on a connection 10 2412 sec_return_server_release_banner whether the server retruns the complete version information FALSE 2413 _sec_enable_test_rpcs Whether to enable the test RPCs FALSE 2414 _use_zero_copy_io Should network vector IO interface be used for data transfer TRUE 2415 enable_ddl_logging enable ddl logging FALSE 2416 _tstz_localtime_bypass Should TTC not convert to LocalTime to preserve Timestamp with Timezone values FALSE 2417 _client_tstz_error_check Should Client give error for suspect Timestamp with Timezone operations TRUE 2418 client_result_cache_size client result cache max size in bytes 0 2419 client_result_cache_lag client result cache maximum lag in milliseconds 3000 2420 _client_result_cache_bypass bypass the client result cache FALSE 2421 _emon_regular_ntfn_slaves number of EMON slaves doing regular database notifications 4 2422 _emon_outbound_connect_timeout timeout for completing connection set up to clients 30000 2423 _emon_max_active_connections maximum open connections to clients per emon 256 2424 _client_ntfn_pingtimeout timeout to connect to unreachable notification clients 30000 2425 _client_ntfn_pinginterval time between pings to unreachable notification clients 75 2426 _client_ntfn_pingretries number of times to ping unreachable notification clients 6 2427 _client_ntfn_cleanup_interval interval after which dead client registration cleanup task repeats 2400 2428 _srvntfn_q_msgcount srvntfn q msg count for job exit 50 2429 _srvntfn_q_msgcount_inc srvntfn q msg count increase for job submit 100 2430 _srvntfn_jobsubmit_interval srvntfn job submit interval 3 2431 _srvntfn_max_concurrent_jobs srvntfn max concurrent jobs 20 2432 _srvntfn_job_deq_timeout srvntfn job deq timeout 60 2433 _tsm_connect_string TSM test connect string 2434 _sscr_dir Session State Capture and Restore DIRectory object 2435 _sscr_osdir Session State Capture and Restore OS DIRectory 2436 _tsm_disable_auto_cleanup Disable TSM auto cleanup actions 1 2437 _enable_nativenet_tcpip Enable skgxp driver usage for native net FALSE 2438 _close_deq_by_cond_curs Close Dequeue By Condition Cursors FALSE 2439 _deq_maxwait_time Change wait times between dequeue calls 0 2440 _deq_max_fetch_count deq max fetch count 10 2441 _deq_execute_reset_time deq execute reset time 30 2442 aq_tm_processes number of AQ Time Managers to start 1 2443 _aq_tm_statistics_duration statistics collection window duration 0 2444 _orph_cln_interval qmon periodic interval for removed subscriber messages cleanup 1200 2445 _aq_max_scan_delay Maximum allowable scan delay for AQ indexes and IOTs 1500 2446 _aq_tm_scanlimit scan limit for Time Managers to clean up IOT 0 2447 _aq_tm_deqcountinterval dequeue count interval for Time Managers to cleanup DEQ IOT BLOCKS 0 2448 _disable_gvaq_cache Disable cache FALSE 2449 _prop_old_enabled Shift to pre 11g propagation behaviour FALSE 2450 _bufq_stop_flow_control Stop enforcing flow control for buffered queues FALSE 2451 _capture_publisher_flow_control_threshold Flow control threshold for capture publishers 0 2452 _buffered_publisher_flow_control_threshold Flow control threshold for buffered publishers except capture 0 2453 _buffered_message_spill_age Buffered message spill age 300 2454 _deq_log_array_size deq log array size 10000 2455 _deq_ht_max_elements deq ht max elements 100000 2456 _deq_ht_child_latches deq ht child latches 8 2457 _deq_large_txn_size deq large txn size 25000 2458 hs_autoregister enable automatic server DD updates in HS agent self-registration TRUE 2459 xml_db_events are XML DB events enabled enable 2460 dg_broker_start start Data Guard broker (DMON process) FALSE 2461 dg_broker_config_file1 data guard broker configuration file #1 /u01/app/oracle/product/11.2.0/dbhome_1/dbs/dr1orclasm.dat 2462 dg_broker_config_file2 data guard broker configuration file #2 /u01/app/oracle/product/11.2.0/dbhome_1/dbs/dr2orclasm.dat 2463 _dg_broker_trace_level data guard broker trace level 2464 _olapi_history_retention enable olapi history retention FALSE 2465 _olapi_session_history enable olapi session history collection 300 2466 _olapi_session_history_retention enable olapi session history retention FALSE 2467 _olapi_iface_object_history enable olapi interface object history collection 1000 2468 _olapi_iface_object_history_retention enable olapi interface object history retention FALSE 2469 _olapi_interface_operation_history enable olapi interface operation history collection 1000 2470 _olapi_iface_operation_history_retention enable olapi interface operation history retention FALSE 2471 _olapi_memory_operation_history enable olapi memory alloc/free history collection 1000 2472 _olapi_memory_operation_history_retention enable olapi memory operation history retention FALSE 2473 _olapi_memory_operation_history_pause_at_seqno enable olapi memory alloc/free history collection pausing 0 2474 olap_page_pool_size size of the olap page pool in bytes 0 2475 _olap_continuous_trace_file OLAP logging definition false 2476 _olap_table_function_statistics Specify TRUE to output OLAP table function timed statistics trace FALSE 2477 _olap_parallel_update_threshold OLAP parallel update threshold in pages 1000 2478 _olap_parallel_update_small_threshold OLAP parallel update threshold for number of small pagespaces 1000 2479 _olap_parallel_update_server_num OLAP parallel update server count 0 2480 _olap_aggregate_buffer_size OLAP Aggregate max buffer size 1048576 2481 _olap_aggregate_min_buffer_size OLAP Aggregate min buffer size 1024 2482 _olap_aggregate_work_per_thread OLAP Aggregate max work parents 1024 2483 _olap_aggregate_min_thread_status OLAP Aggregate minimum cardinality of dimensions for thread 64 2484 _olap_aggregate_statlen_thresh OLAP Aggregate status array usage threshold 1024 2485 _olap_aggregate_worklist_max OLAP Aggregate max worklists generated at once 5000 2486 _olap_aggregate_max_thread_tuples OLAP Aggregate max thread tuples creation 5000 2487 _olap_aggregate_function_cache_enabled OLAP Aggregate function cache enabler TRUE 2488 _olap_aggregate_multipath_hier OLAP Aggregate Multi-path Hierarhies enabled FALSE 2489 _olap_aggregate_flags OLAP Aggregate debug flags 0 2490 _olap_allocate_errorlog_header OLAP Allocate Errorlog Header format Dim Source Basis
%-8d %-8s %-8b Description
-------- -------- -------- ----------- 2491 _olap_allocate_errorlog_format OLAP Allocate Errorlog Format %8p %8y %8z %e (%n) 2492 _olap_dbgoutfile_echo_to_eventlog OLAP DbgOutfile copy output to event log (tracefile) FALSE 2493 _olap_eif_export_lob_size OLAP EIF Export BLOB size 2147483647 2494 _olap_sort_buffer_size OLAP Sort Buffer Size 262144 2495 _olap_sort_buffer_pct OLAP Sort Buffer Size Percentage 10 2496 _olap_sesscache_enabled OLAP Session Cache knob TRUE 2497 _olap_object_hash_class OLAP Object Hash Table Class 3 2498 _olap_dimension_corehash_size OLAP Dimension In-Core Hash Table Maximum Memory Use 30 2499 _olap_dimension_corehash_pressure OLAP Dimension In-Core Hash Table Pressure Threshold 90 2500 _olap_dimension_corehash_large OLAP Dimension In-Core Hash Table Large Threshold 50000 2501 _olap_dimension_corehash_force OLAP Dimension In-Core Hash Table Force FALSE 2502 _olap_page_pool_low OLAP Page Pool Low Watermark 262144 2503 _olap_page_pool_hi OLAP Page Pool High Watermark 50 2504 _olap_page_pool_expand_rate OLAP Page Pool Expand Rate 20 2505 _olap_page_pool_shrink_rate OLAP Page Pool Shrink Rate 50 2506 _olap_page_pool_hit_target OLAP Page Pool Hit Target 100 2507 _olap_page_pool_pressure OLAP Page Pool Pressure Threshold 90 2508 _olap_statbool_threshold OLAP Status Boolean CBM threshold 8100 2509 _olap_statbool_corebits OLAP Status Boolean max incore bits 20000000 2510 _olap_lmgen_dim_size Limitmap generator dimension column size 100 2511 _olap_lmgen_meas_size Limitmap generator measure column size 1000 2512 _olap_wrap_errors Wrap error messages to OLAP outfile FALSE 2513 _olap_analyze_max OLAP DML ANALYZE command max cells to analyze 10000 2514 _olap_adv_comp_stats_max_rows do additional predicate stats analysis for AW rowsource 100000 2515 _olap_adv_comp_stats_cc_precomp do additional predicate stats analysis for AW rowsource 20 2516 _xsolapi_fetch_type OLAP API fetch type PARTIAL 2517 _xsolapi_dimension_group_creation OLAP API symmetric overfetch OVERFETCH 2518 _xsolapi_sql_auto_measure_hints OLAP API enable automatic measure hints TRUE 2519 _xsolapi_sql_auto_dimension_hints OLAP API enable automatic dimension hints FALSE 2520 _xsolapi_sql_hints OLAP API generic hints 2521 _xsolapi_sql_measure_hints OLAP API measure hints 2522 _xsolapi_sql_dimension_hints OLAP API dimension hints 2523 _xsolapi_sql_top_measure_hints OLAP API top measure hints 2524 _xsolapi_sql_top_dimension_hints OLAP API top dimension hints 2525 _xsolapi_sql_all_non_base_hints OLAP API non-base hints 2526 _xsolapi_sql_all_multi_join_non_base_hints OLAP API multi-join non-base hints 2527 _xsolapi_densify_cubes OLAP API cube densification TABULAR 2528 _xsolapi_sql_optimize OLAP API enable optimization TRUE 2529 _xsolapi_sql_remove_columns OLAP API enable remove unused columns optimizations TRUE 2530 _xsolapi_sql_symmetric_predicate OLAP API enable symmetric predicate for dimension groups TRUE 2531 _xsolapi_sql_use_bind_variables OLAP API enable bind variables optimization TRUE 2532 _xsolapi_sql_prepare_stmt_cache_size OLAP API prepare statement cache size 16 2533 _xsolapi_sql_result_set_cache_size OLAP API result set cache size 32 2534 _xsolapi_sql_minus_threshold OLAP API SQL MINUS threshold 1000 2535 _xsolapi_debug_output OLAP API debug output disposition SUPPRESS 2536 _xsolapi_materialize_sources OLAP API Enable source materialization TRUE 2537 _xsolapi_load_at_process_start When to load OLAP API library at server process start NEVER 2538 _xsolapi_fix_vptrs OLAP API Enable vptr fixing logic in shared server mode TRUE 2539 _xsolapi_auto_materialization_type OLAP API behavior for auto materialization PRED_AND_RC 2540 _xsolapi_auto_materialization_bound OLAP API lower bound for auto materialization. 20 2541 _xsolapi_materialization_rowcache_min_rows_for_use OLAP API min number of rows required to use rowcache in query materialization 1 2542 _xsolapi_source_trace OLAP API output Source definitions to trace file FALSE 2543 _xsolapi_dml_trace OLAP API output dml commands and expressions to trace file 2544 _xsolapi_build_trace OLAP API output build info to trace file FALSE 2545 _xsolapi_metadata_reader_mode OLAP API metadata reader mode DEFAULT 2546 _xsolapi_odbo_mode OLAP API uses ODBO mode? FALSE 2547 _xsolapi_set_nls OLAP API sets NLS? TRUE 2548 _xsolapi_stringify_order_levels OLAP API stringifies order levels? FALSE 2549 _xsolapi_suppression_chunk_size OLAP API suppression chunk size 4000 2550 _xsolapi_suppression_aw_mask_threshold OLAP API suppression AW mask threshold 1000 2551 _xsolapi_share_executors OLAP API share executors? TRUE 2552 _xsolapi_hierarchy_value_type OLAP API hierarchy value type unique 2553 _xsolapi_use_models OLAP API uses models? TRUE 2554 _xsolapi_use_olap_dml OLAP API uses OLAP DML? TRUE 2555 _xsolapi_use_olap_dml_for_rank OLAP API uses OLAP DML for rank? TRUE 2556 _xsolapi_remove_columns_for_materialization OLAP API removes columns for materialization? TRUE 2557 _xsolapi_precompute_subquery OLAP API precomputes subqueries? TRUE 2558 _xsolapi_optimize_suppression OLAP API optimizes suppressions? TRUE 2559 _xsolapi_generate_with_clause OLAP API generates WITH clause? FALSE 2560 _xsolapi_sql_enable_aw_join OLAP API enables AW join? TRUE 2561 _xsolapi_sql_enable_aw_qdr_merge OLAP API enables AW QDR merge? TRUE 2562 _xsolapi_opt_aw_position OLAP API enables AW position and count optimization? TRUE 2563 _xsolapi_support_mtm OLAP API MTM mapping classes supported? FALSE 2564 _asm_runtime_capability_volume_support runtime capability for volume support returns supported FALSE 2565 _asm_disable_multiple_instance_check Disable checking for multiple ASM instances on a given node FALSE 2566 _asm_disable_amdu_dump Disable AMDU dump FALSE 2567 _asmsid ASM instance id asm 2568 _asm_allow_system_alias_rename if system alias renaming is allowed FALSE 2569 _asm_instlock_quota ASM Instance Lock Quota 0 2570 asm_diskstring disk set locations for discovery 2571 _asm_disk_repair_time seconds to wait before dropping a failing disk 14400 2572 asm_preferred_read_failure_groups preferred read failure groups 2573 _asm_disable_profilediscovery disable profile query for discovery FALSE 2574 _asm_imbalance_tolerance hundredths of a percentage of inter-disk imbalance to tolerate 3 2575 _asm_shadow_cycle Inverse shadow cycle requirement 3 2576 _asm_primary_load_cycles True if primary load is in cycles, false if extent counts TRUE 2577 _asm_primary_load Number of cycles/extents to load for non-mirrored files 1 2578 _asm_secondary_load_cycles True if secondary load is in cycles, false if extent counts FALSE 2579 _asm_secondary_load Number of cycles/extents to load for mirrored files 10000 2580 _kffmap_hash_size size of kffmap_hash table 1024 2581 _kffmop_hash_size size of kffmop_hash table 2048 2582 asm_diskgroups disk groups to mount automatically 2583 asm_power_limit number of parallel relocations for disk rebalancing 1 2584 _disable_rebalance_space_check disable space usage checks for storage reconfiguration FALSE 2585 _disable_rebalance_compact disable space usage checks for storage reconfiguration FALSE 2586 _asm_log_scale_rebalance Rebalance power uses logarithmic scale FALSE 2587 _asm_sync_rebalance Rebalance uses sync I/O FALSE 2588 _diag_arb_before_kill dump diagnostics before killing unresponsive ARBs FALSE 2589 _asm_ausize allocation unit size 1048576 2590 _asm_blksize metadata block size 4096 2591 _asm_acd_chunks initial ACD chunks created 1 2592 _asm_partner_target_disk_part target maximum number of disk partners for repartnering 8 2593 _asm_partner_target_fg_rel target maximum number of failure group relationships for repartnering 4 2594 _asm_automatic_rezone automatically rebalance free space across zones TRUE 2595 _asm_rebalance_plan_size maximum rebalance work unit 120 2596 _asm_rebalance_space_errors number of out of space errors allowed before aborting rebalance 4 2597 _asm_libraries library search order for discovery ufs 2598 _asm_maxio Maximum size of individual I/O request 1048576 2599 _asm_allow_only_raw_disks Discovery only raw devices TRUE 2600 _asm_fob_tac_frequency Timeout frequency for FOB cleanup 9 2601 _asm_emulate_nfs_disk Emulate NFS disk test event FALSE 2602 _asmlib_test Osmlib test event 0 2603 _asm_allow_lvm_resilvering Enable disk resilvering for external redundancy TRUE 2604 _asm_lsod_bucket_size ASM lsod bucket size 13 2605 _asm_iostat_latch_count ASM I/O statistics latch count 31 2606 _kfm_disable_set_fence disable set fence calls and revert to default (process fence) FALSE 2607 _asm_disable_smr_creation Do Not create smr FALSE 2608 _asm_wait_time Max/imum time to wait before asmb exits 18 2609 _asm_skip_resize_check skip the checking of the clients for s/w compatibility for resize FALSE 2610 _asm_skip_rename_check skip the checking of the clients for s/w compatibility for rename FALSE 2611 _asm_direct_con_expire_time Expire time for idle direct connection to ASM instance 120 2612 _asm_check_for_misbehaving_cf_clients check for misbehaving CF-holding clients FALSE 2613 _asm_diag_dead_clients diagnostics for dead clients FALSE 2614 _asm_reserve_slaves reserve ASM slaves for CF txns TRUE 2615 _asm_kill_unresponsive_clients kill unresponsive ASM clients TRUE 2616 _asm_disable_async_msgs disable async intra-instance messaging FALSE 2617 _asm_stripewidth ASM file stripe width 8 2618 _asm_stripesize ASM file stripe size 131072 2619 _disable_fastopen Do Not Use Fastopen FALSE 2620 _asm_random_zone Random zones for new files FALSE 2621 _asm_serialize_volume_rebalance Serialize volume rebalance FALSE 2622 _asm_force_quiesce Force diskgroup quiescing FALSE 2623 _asm_dba_threshold ASM Disk Based Allocation Threshold 0 2624 _asm_dba_batch ASM Disk Based Allocation Max Batch Size 500000 2625 _asm_usd_batch ASM USD Update Max Batch Size 64 2626 _asm_fail_random_rx Randomly fail some RX enqueue gets FALSE 2627 _relocation_commit_batch_size ASM relocation commit batch size 8 2628 _asm_max_redo_buffer_size asm maximum redo buffer size 2097152 2629 _asm_max_cod_strides maximum number of COD strides 5 2630 _asm_kfioevent KFIO event 0 2631 _asm_evenread ASM Even Read level 0 2632 _asm_evenread_alpha ASM Even Read Alpha 0 2633 _asm_evenread_alpha2 ASM Even Read Second Alpha 0 2634 _asm_evenread_faststart ASM Even Read Fast Start Threshold 0 2635 _asm_dbmsdg_nohdrchk dbms_diskgroup.checkfile does not check block headers FALSE 2636 _asm_root_directory ASM default root directory ASM 2637 _asm_hbeatiowait number of secs to wait for PST Async Hbeat IO return 15 2638 _asm_hbeatwaitquantum quantum used to compute time-to-wait for a PST Hbeat check 2 2639 _asm_repairquantum quantum (in 3s) used to compute elapsed time for disk drop 60 2640 _asm_emulmax max number of concurrent disks to emulate I/O errors 10000 2641 _asm_emultimeout timeout before emulation begins (in 3s ticks) 0 2642 _asm_kfdpevent KFDP event 0 2643 _asm_storagemaysplit PST Split Possible FALSE 2644 _asm_avoid_pst_scans Avoid PST Scans TRUE 2645 _disable_storage_type Disable storage type checks TRUE 2646 _asm_compatibility default ASM compatibility level 10.1 2647 _rdbms_compatibility default RDBMS compatibility level 10.1 2648 _allow_cell_smart_scan_attr Allow checking smart_scan_capable Attr TRUE 2649 _asm_admin_with_sysdba Does the sysdba role have administrative privileges on ASM? FALSE 2650 _asm_allow_appliance_dropdisk_noforce Allow DROP DISK/FAILUREGROUP NOFORCE on ASM Appliances FALSE 2651 _disable_appliance_check Disable checking for appliance bread crumbs FALSE 2652 _asm_appliance_config_file Appliance configuration file name 2653 _disable_appliance_partnering Disable partnering mode for appliance FALSE 2654 control_management_pack_access declares which manageability packs are enabled DIAGNOSTIC+TUNING 2655 _alert_expiration seconds before an alert message is moved to exception queue 604800 2656 _alert_message_cleanup Enable Alert Message Cleanup 1 2657 _alert_message_purge Enable Alert Message Purge 1 2658 _alert_post_background Enable Background Alert Posting 1 2659 _swrf_test_action test action parameter for SWRF 0 2660 _sysaux_test_param test parameter for SYSAUX 1 2661 _swrf_mmon_flush Enable/disable SWRF MMON FLushing TRUE 2662 _awr_corrupt_mode AWR Corrupt Mode FALSE 2663 _awr_restrict_mode AWR Restrict Mode FALSE 2664 _swrf_mmon_metrics Enable/disable SWRF MMON Metrics Collection TRUE 2665 _swrf_metric_frequent_mode Enable/disable SWRF Metric Frequent Mode Collection FALSE 2666 _awr_flush_threshold_metrics Enable/Disable Flushing AWR Threshold Metrics TRUE 2667 _awr_flush_workload_metrics Enable/Disable Flushing AWR Workload Metrics FALSE 2668 _awr_disabled_flush_tables Disable flushing of specified AWR tables 2669 _swrf_on_disk_enabled Parameter to enable/disable SWRF TRUE 2670 _swrf_mmon_dbfus Enable/disable SWRF MMON DB Feature Usage TRUE 2671 _awr_mmon_cpuusage Enable/disable AWR MMON CPU Usage Tracking TRUE 2672 _swrf_test_dbfus Enable/disable DB Feature Usage Testing FALSE 2673 _adr_migrate_runonce Enable/disable ADR Migrate Runonce action TRUE 2674 _mwin_schedule Enable/disable Maintenance Window Schedules TRUE 2675 _awr_sql_child_limit Setting for AWR SQL Child Limit 200 2676 awr_snapshot_time_offset Setting for AWR Snapshot Time Offset 0 2677 _awr_mmon_deep_purge_interval Set interval for deep purge of AWR contents 7 2678 _awr_mmon_deep_purge_extent Set extent of rows to check each deep purge run 7 2679 _awr_mmon_deep_purge_numrows Set max number of rows per table to delete each deep purge run 5000 2680 sqltune_category Category qualifier for applying hintsets DEFAULT 2681 _sqltune_category_parsed Parsed category qualifier for applying hintsets DEFAULT 2682 _ash_sampling_interval Time interval between two successive Active Session samples in millisecs 1000 2683 _ash_size To set the size of the in-memory Active Session History buffers 1048618 2684 _ash_enable To enable or disable Active Session sampling and flushing TRUE 2685 _ash_disk_write_enable To enable or disable Active Session History flushing TRUE 2686 _ash_disk_filter_ratio Ratio of the number of in-memory samples to the number of samples actually written to disk 10 2687 _ash_eflush_trigger The percentage above which if the in-memory ASH is full the emergency flusher will be triggered 66 2688 _ash_sample_all To enable or disable sampling every connected session including ones waiting for idle waits FALSE 2689 _ash_dummy_test_param Oracle internal dummy ASH parameter used ONLY for testing! 0 2690 _ash_min_mmnl_dump Minimum Time interval passed to consider MMNL Dump 90 2691 _ash_compression_enable To enable or disable string compression in ASH TRUE 2692 _kebm_nstrikes kebm # strikes to auto suspend an action 3 2693 _kebm_suspension_time kebm auto suspension time in seconds 82800 2694 _timemodel_collection enable timemodel collection TRUE 2695 _disable_metrics_group Disable Metrics Group (or all Metrics Groups) 0 2696 _threshold_alerts_enable if 1, issue threshold-based alerts 1 2697 _enable_default_undo_threshold Enable Default Tablespace Utilization Threshold for TEMPORARY Tablespaces TRUE 2698 _enable_default_temp_threshold Enable Default Tablespace Utilization Threshold for UNDO Tablespaces TRUE 2699 _addm_auto_enable governs whether ADDM gets run automatically after every AWR snapshot TRUE 2700 _addm_version_check governs whether ADDM checks the input AWR snapshot version TRUE 2701 _addm_skiprules comma-separated list of ADDM nodes to skip 2702 _automatic_maintenance_test Enable AUTOTASK Test Mode 0 2703 _autotask_min_window Minimum Maintenance Window Length in minutes 15 2704 _autotask_max_window Maximum Logical Maintenance Window Length in minutes 480 2705 _enable_automatic_maintenance if 1, Automated Maintenance Is Enabled 1 2706 _bsln_adaptive_thresholds_enabled Adaptive Thresholds Enabled TRUE 2707 _wcr_control Oracle internal test WCR parameter used ONLY for testing! 0 2708 _capture_buffer_size To set the size of the PGA I/O recording buffers 65536 2709 _diag_verbose_error_on_init Allow verbose error tracing on diag init 0 2710 _diag_hm_rc_enabled Parameter to enable/disable Diag HM Reactive Checks TRUE 2711 _diag_hm_tc_enabled Parameter to enable/disable Diag HM Test(dummy) Checks FALSE 2712 diagnostic_dest diagnostic base directory /u01/app/oracle 2713 _diag_adr_enabled Parameter to enable/disable Diag ADR TRUE 2714 _diag_adr_auto_purge Enable/disable ADR MMON Auto Purging TRUE 2715 _diag_backward_compat Backward Compatibility for Diagnosability TRUE 2716 _diag_adr_test_param Test parameter for Diagnosability 0 2717 _dra_enable_offline_dictionary Enable the periodic creation of the offline dictionary for DRA FALSE 2718 _dra_bmr_number_threshold Maximum number of BMRs that can be done to a file 1000 2719 _dra_bmr_percent_threshold Maximum percentage of blocks in a file that can be BMR-ed 10 2720 _diag_conf_cap_enabled Parameter to enable/disable Diag Configuration Capture TRUE 2721 _dde_flood_control_init Initialize Flood Control at database open TRUE 2722 _diag_dde_fc_enabled Parameter to enable/disable Diag Flood Control TRUE 2723 _diag_dde_fc_implicit_time Override Implicit Error Flood Control time parameter 0 2724 _diag_dde_fc_macro_time Override Macro Error Flood Control time parameter 0 2725 _diag_cc_enabled Parameter to enable/disable Diag Call Context TRUE 2726 _diag_dde_inc_proc_delay The minimum delay between two MMON incident sweeps (minutes) 1 2727 _diag_dde_async_msgs diag dde async actions: number of preallocated message buffers 50 2728 _diag_dde_async_msg_capacity diag dde async actions: message buffer capacity 1024 2729 _diag_dde_async_slaves diag dde async actions: max number of concurrent slave processes 5 2730 _diag_dde_async_mode diag dde async actions: dispatch mode 1 2731 _diag_dde_async_age_limit diag dde async actions: message age limit (in seconds) 300 2732 _diag_dde_async_process_rate diag dde async actions: message processing rate - per loop 5 2733 _diag_dde_async_runtime_limit diag dde async actions: action runtime limit (in seconds) 900 2734 _diag_dde_async_cputime_limit diag dde async actions: action cputime limit (in seconds) 300 2735 _diag_dde_enabled enable DDE handling of critical errors TRUE 2736 tracefile_identifier trace file custom identifier 2737 _trace_files_public Create publicly accessible trace files FALSE 2738 max_dump_file_size Maximum size (in bytes) of dump file unlimited 2739 _diag_uts_control UTS control parameter 0 2740 _trace_pool_size trace pool size in bytes 2741 trace_enabled enable in memory tracing TRUE 2742 _evt_system_event_propagation disable system event propagation TRUE 2743 _diag_enable_startup_events enable events in instance startup notifiers FALSE 2744 _auto_manage_exadata_disks Automate Exadata disk management TRUE 2745 _auto_manage_ioctl_bufsz oss_ioctl buffer size, to read and respond to cell notifications 8192 2746 _auto_manage_num_tries Num. tries before giving up on a automation operation 2 2747 _auto_manage_enable_offline_check perodically check for OFFLINE disks and attempt to ONLINE TRUE 2748 _auto_manage_max_online_tries Max. attempts to auto ONLINE an ASM disk 3 2749 _auto_manage_online_tries_expire_time Allow Max. attempts to auto ONLINE an ASM disk after lapsing this time (unit in seconds) 86400 2750 _auto_manage_num_pipe_msgs Max. number of out-standing msgs in the KXDAM pipe 1000 2751 _auto_manage_infreq_tout TEST: Set infrequent timeout action to run at this interval, unit is seconds 0

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