rac維護工具集系列（三）--叢集層crsctl系列

rac維護工具集系列（三）--叢集層crsctl系列
crsctl
1.檢查crs棧狀態
[oracle@rac1 bin]$ crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
[oracle@rac1 bin]$ crsctl check cssd
CSS appears healthy
[oracle@rac1 bin]$ crsctl check crsd
CRS appears healthy
[oracle@rac1 bin]$ crsctl check evmd
EVM appears healthy

2.配置CRS是否自動啟動
CRS程式預設隨著OS的啟動而啟動，但是有時出於維護的目的需要關閉這個特性，root使用者執行
root使用者執行CRS
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl disable crs
[root@rac1 ~]# more /etc/oracle/scls_scr/rac1/root/crsstart
disable
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl enable crs
[root@rac1 ~]# more /etc/oracle/scls_scr/rac1/root/crsstart
enable

3.啟動停止CRS
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl stop crs
Stopping resources. This could take several minutes.
Error while stopping resources. Possible cause: CRSD is down.
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl check crs
Failure 1 contacting CSS daemon
Cannot communicate with CRS
Cannot communicate with EVM
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl start crs
Attempting to start CRS stack
The CRS stack will be started shortly
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
 

4.檢視Votedisk磁碟位置
[oracle@rac1 ~]$ crsctl query css votedisk
 0.     0    /ocfs/clusterware/votingdisk
located 1 votedisk(s).

維護votedisk
    以圖形方式安裝Clustware過程中，在配置votedisk時，如果選擇了External Redundancy策略，則只能填寫一個votedisk,但是我們可以使用crsctl命令來新增多個votedisk.
    新增多個votedisk後，這些votedisk互為映象，可以防止votedisk的單點故障。
    新增和刪除votedisk的操作比較危險，必須在停止資料庫，停止ASM，停止CRS Stack後操作，並且必須使用-force引數
1.停止crs
[root@rac1 ~]#  /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl stop crs;
Stopping resources. This could take several minutes.
Successfully stopped CRS resources.
Stopping CSSD.
Shutting down CSS daemon.
Shutdown request successfully issued.
2.新增votedisk映象
[root@rac1 ~]#  /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl add css votedisk  /ocfs/clusterware/votingdisk2 -force
Now formatting voting disk: /ocfs/clusterware/votingdisk2
successful addition of votedisk /ocfs/clusterware/votingdisk2.
3.查詢votedisk
[root@rac1 ~]#  /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl query css votedisk
 0.     0    /ocfs/clusterware/votingdisk
 1.     0    /ocfs/clusterware/votingdisk2
located 2 votedisk(s).
4.重新啟動
[root@rac1 ~]#  /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl start crs;
Attempting to start CRS stack
The CRS stack will be started shortly
5.刪除votedisk
[root@rac1 ~]# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl delete css votedisk /ocfs/clusterware/votingdisk2 -force
successful deletion of votedisk /ocfs/clusterware/votingdisk2.
6.查詢votedisk
[root@rac1 ~]#  /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl query css votedisk
 0.     0    /ocfs/clusterware/votingdisk
located 1 votedisk(s).
7.檢查crs狀態
[oracle@rac1 ~]$ crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy