Backup and Recovery - Oracle Exadata Recipes: A Problem-Solution Approach - page 232

[root@cm01dbm01 ~]# dcli -g ./dbs_group -l root /u01/app/11.2.0.3/grid/bin/crsctl enable crs
cm01dbm01: CRS-4622: Oracle High Availability Services autostart is enabled.
cm01dbm02: CRS-4622: Oracle High Availability Services autostart is enabled.
[root@cm01dbm01 ~]# shutdown -r 0
... output omitted
Once your compute nodes are back up, validate your OCR by running the following command as root or the Grid
Infrastructure software owner:
[root@cm01dbm01 ~]# /u01/app/11.2.0.3/grid/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3464
Available space (kbytes) : 258656
ID : 1833511320
Device/File Name : +DBFS_DG
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
[root@cm01dbm01 ~]#
Finally, run crsctl stat resource to ensure that your cluster resources are started.
Restoring Your Voting DIsks
First, you must start CRS on your Exadata Compute Nodes. If all three copies of your voting disks are lost, you will have
issues starting each piece of your Oracle RAC infrastructure, but you should be able to query your OCR location using
the $GI_HOME/bin/ocrcheck command as listed in the previous section.
Assuming that your OCR is healthy, use the following command to restore your voting disks while logged in as
root to a compute server:
[root@cm01dbm01 ~]# /u01/app/11.2.0.3/grid/bin/crsctl replace votedisk +DBFG_DG
Sucessful addition of voting disk 36c247152bc4f48bf7bc76b101623a8.
Sucessful addition of voting disk a8d245a33c6d4ff9bf76b53f9a6c3cce.
Sucessful addition of voting disk 3d6011e464284f20bf1869c45d45358e
CRS-4266: Voting file(s) successfully replaced
[root@cm01dbm01 ~]#
After successful voting disk restore, restart CRS on each node in your cluster.
How It Works
Oracle allows you to restore your Oracle Cluster Registry using the ocrconfig -restore command. This command
accepts a backup OCR file as its argument, which you can choose by running ocrconfig -showbackup and selecting
the appropriate backup copy that resides on your compute node file system.