一：CRS自啟動

二：實例自啟動

一：CRS自啟動

默認情況下，crs是隨著系統啟動自動啟動的。

查看版本

[root@rac01 bin]# ./crsctl query crs softwareversionOracle Clusterware version on node [rac01] is [11.2.0.4.0]

啟動自啟動(默認)

[root@rac01 bin]# ./crsctl enable crsCRS-4622: Oracle High Availability Services autostart is enabled.

查看

[root@rac01 bin]# cat /etc/oracle/scls_scr/rac01/root/ohasdstr enable

禁用自啟動

[root@rac01 ./crsctl disable crsCRS-4621: Oracle High Availability Services autostart is disabled.

查看

[root@rac01 bin]# cat /etc/oracle/scls_scr/rac01/root/ohasdstr disable

二：實例自啟動?

默認情況下,AUTO_START值為restore。

2.1 AUTO_START=restore

其中restore表示還原、恢復的含義，即將實例狀態恢復到crs停止前的狀態。

(1)如果crs停止前，手動通過sqlplus或srvctl停止了實例，那么在crs重啟后，實例不會跟著自動啟動。(2)如果crs停止前，實例處于open狀態，那么重啟crs(或操作系統重啟)，實例會跟著crs啟動而啟動。注意：在沒有停止實例前直接停止crs,實例是以abort方式停止的[Shutting down instance (abort)]

2.2 AUTO_START=always

將AUTO_START由restore改成always后，無論crs停止前實例是open還是close狀態，實例都會跟著crs啟動而啟動。

2.1 AUTO_START=restore

測試AUTO_START=restore下，實例啟動情況。

查看數據庫信息

[root@rac01 bin]# ./crsctl start crs[root@rac01 bin]# ./srvctl config databasecjcdb[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is running on node rac01Instance cjcdb2 is running on node rac02

默認AUTO_START=restore?

[root@rac01 bin]# ./crsctl stat res ora.cjcdb.db -p|grep AUTO_STARTAUTO_START=restore

測試：啟動crs，實例沒有自動啟動(srvctl停庫)

[root@rac01 bin]# ./crsctl stat res ora.cjcdb.db -p|grep AUTO_STARTAUTO_START=restore[root@rac02 bin]# ./crsctl stat res ora.cjcdb.db -p|grep AUTO_STARTAUTO_START=restore手動停止實例[root@rac01 bin]# ./srvctl stop database -d cjcdb###[root@rac01 bin]# ./srvctl stop instance -d cjcdb -i cjcdb1[root@rac01 bin]# ./crsctl stop crs[root@rac02 bin]# ./crsctl stop crs[root@rac01 bin]# ./crsctl start crs[root@rac02 bin]# ./crsctl start crs

查看實例狀態

[root@rac01 bin]# ./crsctl stat res ora.cjcdb.db -t--------------------------------------------------------------------------------NAME TARGET STATE SERVER STATE_DETAILS --------------------------------------------------------------------------------Cluster Resources--------------------------------------------------------------------------------ora.cjcdb.db 1 OFFLINE OFFLINE Instance Shutdown 2 OFFLINE OFFLINE Instance Shutdown

測試：啟動crs,實例沒有自動啟動(SQLPLUS停庫)

停止實例

SQL> shutdown immediate[root@rac01 bin]# ./crsctl stop crsSQL> shutdown immediate[root@rac02 bin]# ./crsctl stop crs

重啟crs

[root@rac01 bin]# ./crsctl start crs[root@rac02 bin]# ./crsctl start crs

查看實例狀態

[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is not running on node rac01Instance cjcdb2 is not running on node rac02

測試：啟動crs，實例自動啟動(srvctl)

啟動實例

[root@rac01 bin]# ./srvctl start database -d cjcdb[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is running on node rac01Instance cjcdb2 is running on node rac02

重啟crs

[root@rac01 bin]# ./crsctl stop crs[root@rac01 bin]# ./crsctl start crs[root@rac02 bin]# ./crsctl stop crs[root@rac02 bin]# ./crsctl start crs

查看實例狀態

[root@rac01 bin]# ./crsctl stat res ora.cjcdb.db -t--------------------------------------------------------------------------------NAME TARGET STATE SERVER STATE_DETAILS --------------------------------------------------------------------------------Cluster Resources--------------------------------------------------------------------------------ora.cjcdb.db 1 ONLINE ONLINE rac01 Open 2 ONLINE ONLINE rac02 Open

?查看實例狀態

[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is running on node rac01Instance cjcdb2 is running on node rac02

啟動crs，實例自動啟動(sqlplus)

###節點1###SQL> startup###節點2###SQL> startup

重啟crs

[root@rac01 bin]# ./crsctl stop crs[root@rac01 bin]# ./crsctl start crs[root@rac02 bin]# ./crsctl stop crs[root@rac02 bin]# ./crsctl start crs

查看實例狀態

[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is running on node rac01Instance cjcdb2 is running on node rac02

2.2 AUTO_START=always

實例自啟動?

[root@rac01 bin]# ./crsctl stat res ora.cjcdb.db -p|grep AUTO_STARTAUTO_START=restore

實例1修改AUTO_START=always

[root@rac01 bin]# ./crsctl modify resource ora.cjcdb.db -attr "AUTO_START=always"[root@rac01 bin]# ./crsctl stat res ora.cjcdb.db -p|grep AUTO_STARTAUTO_START=always

查看實例狀態

[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is not running on node rac01Instance cjcdb2 is not running on node rac02

重啟crs

[root@rac01 bin]# ./crsctl stop crs[root@rac01 bin]# ./crsctl start crs

查看實例狀態

[root@rac01 bin]# ./srvctl status instance -d cjcdb -i cjcdb1,cjcdb2 -f -vInstance cjcdb1 is running on node rac01. Instance status: Open.Instance cjcdb2 is not running on node rac02[root@rac01 bin]# ./srvctl status database -d cjcdbInstance cjcdb1 is running on node rac01Instance cjcdb2 is not running on node rac02

參考：

SRVCTL : Disabled DB Instance Status Changed to Online when ASM Restarted (Doc ID 2299664.1)Instance Does not Start After 11gR2 Grid Infrastructure Restart or Node Reboot (Doc ID 1149003.1)

更多數據庫相關學習資料，可以查看我的ITPUB博客，網名chenoracle：

http://blog.itpub.net/29785807/

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