检查权限
[root@m2 tmp]# ls -ltr /etc/oratab
-rw-rw-r-- 1 grid oinstall 904 Apr 22 10:14 /etc/oratab
解决
chown oracle.oinstall
#出现了一些错误。
#1 Unable to copy the file "rac2:/etc/oratab" to "/tmp/oratab.rac2"
#因为rac2没有/etc/oratab这个文件，所以从rac1 rcp一个过去。解决。
#1 Unable to copy the file "rac2:/etc/oratab" to "/tmp/oratab.rac2"
#因为rac2没有/etc/oratab这个文件，所以从rac1 rcp一个过去。解决。
参考附件
分类： Oracle
[oracle@node1 ~]$ vi /etc/oratab
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
#
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
# A colon, ':', is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
orcl:/u01/app/oracle/product/10.2.0/db_1:N
最后的N或者Y表示是否允许dbstart来启动数据库，如果为N则实例不能通过dbstart启动，表现为sqlplus连接实例时显示Connected to an idle instance.如果为Y则实例可以通过dbstart启动，sqlplus连接后数据库即为open状态。
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
#
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
# A colon, ':', is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
orcl:/u01/app/oracle/product/10.2.0/db_1:N
最后的N或者Y表示是否允许dbstart来启动数据库，如果为N则实例不能通过dbstart启动，表现为sqlplus连接实例时显示Connected to an idle instance.如果为Y则实例可以通过dbstart启动，sqlplus连接后数据库即为open状态。
检查权限
[root@m2 tmp]# ls -ltr /etc/oratab
-rw-rw-r-- 1 grid oinstall 904 Apr 22 10:14 /etc/oratab
解决
chown oracle.oinstall
#出现了一些错误。
#1 Unable to copy the file "rac2:/etc/oratab" to "/tmp/oratab.rac2"
#因为rac2没有/etc/oratab这个文件，所以从rac1 rcp一个过去。解决。
#1 Unable to copy the file "rac2:/etc/oratab" to "/tmp/oratab.rac2"
#因为rac2没有/etc/oratab这个文件，所以从rac1 rcp一个过去。解决。
参考附件
/etc/oratab 文件用处
2010-05-04 09:49:20
分类： Oracle
[oracle@node1 ~]$ vi /etc/oratab
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
#
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
# A colon, ':', is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
orcl:/u01/app/oracle/product/10.2.0/db_1:N
最后的N或者Y表示是否允许dbstart来启动数据库，如果为N则实例不能通过dbstart启动，表现为sqlplus连接实例时显示Connected to an idle instance.如果为Y则实例可以通过dbstart启动，sqlplus连接后数据库即为open状态。
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
#
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
# A colon, ':', is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
orcl:/u01/app/oracle/product/10.2.0/db_1:N
最后的N或者Y表示是否允许dbstart来启动数据库，如果为N则实例不能通过dbstart启动，表现为sqlplus连接实例时显示Connected to an idle instance.如果为Y则实例可以通过dbstart启动，sqlplus连接后数据库即为open状态。
