AIX RAC配置Flashback Recovery Area

简介:

环境:

操作系统: AIX 5300-09

集群软件: CRS 10.2.0.1

数据库:   Oracle 10.2.0.1

wKiom1M-fceBv-0sAAFsPugZXrI173.jpg

本案例是用于基于VG Concurrent 的共享存储,通过HACMP 实现卷组的并发

由于共享存储采用了并发卷组,在上面不能建立文件系统;并且Flashback Recover Area亦不能建立在raw上,所以在本地卷组上建立文件系统,通过NFS共享方式来建立Flashback Recover Area。


1、在node1上建立文件系统


[root@aix211 /]#lsvg rootvg

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VOLUME GROUP:       rootvg                   VG IDENTIFIER:  00040f8a00004c0000000140c6da55a7
VG STATE:           active                   PP SIZE:         128  megabyte(s)
VG PERMISSION:      read/write               TOTAL PPs:       546  ( 69888  megabytes)
MAX LVs:             256                       FREE PPs:        190  ( 24320  megabytes)
LVs:                 17                        USED PPs:        356  ( 45568  megabytes)
OPEN LVs:            16                        QUORUM:          2  (Enabled)
TOTAL PVs:           1                         VG DESCRIPTORS:  2
STALE PVs:           0                         STALE PPs:       0
ACTIVE PVs:          1                         AUTO ON:        yes
MAX PPs per VG:      32512                                     
MAX PPs per PV:      1016                      MAX PVs:         32
LTG size (Dynamic):  256  kilobyte(s)          AUTO SYNC:      no
HOT SPARE:          no                       BB POLICY:      relocatable

[root@aix211 /]#smit crfs

wKioL1PjOnzD-2m3AAHDYbqZwsA096.jpg

[root@aix211 /]#df -m

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Filesystem    MB blocks      Free %Used    Iused %Iused Mounted  on
/dev/hd4         6144.00    2070.94    67 %      8211      1 % /
/dev/hd2         3072.00     911.26    71 %     51509      7 % /usr
/dev/hd9var      2048.00    1809.38    12 %      5557      2 % / var
/dev/hd3         2048.00    1827.30    11 %       381      1 % /tmp
/dev/hd1         2048.00    1293.68    37 %       223      1 % /home
/proc                 -         -    -         -     -  /proc
/dev/hd10opt     1024.00     702.17    32 %      5604      3 % /opt
/dev/lv00       15360.00    2490.89    84 %     33598      1 % /u01
/dev/lv01         128.00     123.94     4 %        18      1 % / var /adm/csd
/dev/lv02        4096.00    3967.39     4 %        16      1 % /arch
/dev/lv03        2048.00    1983.67     4 %        17      1 % /dsk1
/dev/lv04        2048.00    1983.67     4 %        17      1 % /dsk2
/dev/lv05         128.00     123.94     4 %        17      1 % /flash_rcy

[root@aix211 /]#chown -R oracle:dba /flash_rcy


2、配置Flashback Directory共享

[root@aix211 /]#cat /etc/exports

/soft2 -sec=sys:krb5p:krb5i:krb5:dh,rw,access=aix212:aix199

/flash_rcy -sec=sys:krb5p:krb5i:krb5:dh,rw,root=aix212


3、在node2上配置共享访问Flashback Directory

[root@aix212@ /]#cat /etc/filesystems

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/flash_rcy:
         dev             =  "/flash_rcy"
         vfs             = nfs
         nodename        =  192.168. 8.211
         mount           =  true
         options         = rw,bg,hard,intr,proto=tcp,vers= 3 ,rsize= 65536 ,wsize= 65536 ,timeo= 60
0
         account         =  false

[oracle@aix212@ /]$mkdir /flash_rcy

[root@aix212@ /]#ls -ld /flash_rcy

drwxr-sr-x    4 oracle   dba             512 Aug  7 15:44 /flash_rcy

[root@aix212@ /]#mount /flash_rcy

[oracle@aix212@ ~]$mount

  node       mounted        mounted over    vfs       date        options      

-------- ---------------  ---------------  ------ ------------ --------------- 

192.168.8.211 /flash_rcy       /flash_rcy       nfs3   Aug 07 15:53 rw,bg,hard,intr,proto=tcp,vers=3,rsize=65536,wsize=65536,timeo=60


4、配置Flashback Recovery Area

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SQL> show parameter recovery
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest                string      /flash_rcy
db_recovery_file_dest_size           big integer 2G

5、测试Flashback Recovery Area

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[oracle@aix212@ ~]$rman target /
Recovery Manager: Release  10.2. 0.1. 0  - Production  on  Thu Aug  7  15 : 53 : 31  2014
Copyright (c)  1982 2005 , Oracle.  All rights reserved.
connected to target database: PROD (DBID= 266564886 not  open)
RMAN> backup current controlfile;
Starting backup  at  07 -AUG -14
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s)  in  backupset
including current control file  in  backupset
channel ORA_DISK_1: starting piece  1  at  07 -AUG -14
channel ORA_DISK_1: finished piece  1  at  07 -AUG -14
piece handle=/flash_rcy/PROD/backupset/2014_08_07/o1_mf_ncnnf_TAG20140807T155423_9y68o0ff_.bkp tag=TAG20140807T155423 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time:  00 : 00 : 04
Finished backup  at  07 -AUG -14
RMAN> list backup ;  
List of Backup Sets
===================
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
1        Full     10. 86M     DISK         00 : 00 : 04      07 -AUG -14      
         BP Key:  1    Status: AVAILABLE  Compressed: NO  Tag: TAG20140807T155338
         Piece Name: /flash_rcy/PROD/backupset/2014_08_07/o1_mf_ncsnf_TAG20140807T155338_9y68mp2s_.bkp
   Control File Included: Ckp SCN:  909245        Ckp time:  07 -AUG -14
   SPFILE Included: Modification time:  07 -AUG -14
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
2        Full     10. 83M     DISK         00 : 00 : 02      07 -AUG -14      
         BP Key:  2    Status: AVAILABLE  Compressed: NO  Tag: TAG20140807T155423
         Piece Name: /flash_rcy/PROD/backupset/2014_08_07/o1_mf_ncnnf_TAG20140807T155423_9y68o0ff_.bkp
   Control File Included: Ckp SCN:  909245        Ckp time:  07 -AUG -14

@默认,RMAN备份存储到Flashback Recovery Area,至此Flashbackup Recovery Area配置完成!


错误案例:访问Flashback Recovery Area失败

[oracle@aix212@ ~]$rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Thu Aug 7 15:48:33 2014

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: PROD (DBID=266564886, not open)

RMAN> backup database;

Starting backup at 07-AUG-14

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=151 instance=prod2 devtype=DISK

channel ORA_DISK_1: starting full datafile backupset

channel ORA_DISK_1: specifying datafile(s) in backupset

RMAN-03009: failure of backup command on ORA_DISK_1 channel at 08/07/2014 15:48:44

ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode

continuing other job steps, job failed will not be re-run

channel ORA_DISK_1: starting full datafile backupset

channel ORA_DISK_1: specifying datafile(s) in backupset

including current control file in backupset

including current SPFILE in backupset

channel ORA_DISK_1: starting piece 1 at 07-AUG-14

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03009: failure of backup command on ORA_DISK_1 channel at 08/07/2014 15:48:47

ORA-19504: failed to create file "/flash_rcy/PROD/backupset/2014_08_07/o1_mf_ncsnf_TAG20140807T154843_%u_.bkp"

ORA-27054: NFS file system where the file is created or resides is not mounted with correct options

Additional information: 6


解决方法:


/etc/filesystems配置mount参数:

[root@aix212@ /]#cat /etc/filesystems

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/flash_rcy:
         dev             =  "/flash_rcy"
         vfs             = nfs
         nodename        =  192.168. 8.211
         mount           =  true
         options         = rw,bg,hard,intr,proto=tcp,vers= 3 ,rsize= 65536 ,wsize= 65536 ,timeo= 60
0
         account         =  false

@重新mount后,问题解决 !










本文转自 客居天涯 51CTO博客,原文链接:http://blog.51cto.com/tiany/1537030,如需转载请自行联系原作者
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