Step 1: Identify OCR physical backup using the following command
[root@rac1 ~]# ocrconfig -showbackuprac2 2020/04/03 16:57:56 /u01/app/12.1.0/grid/cdata/rac-scan/backup00.ocr 0
rac1 2020/04/01 17:34:19 /u01/app/12.1.0/grid/cdata/rac-scan/backup01.ocr 0
rac1 2020/04/31 13:57:45 /u01/app/12.1.0/grid/cdata/rac-scan/backup02.ocr 0
rac2 2020/04/03 16:57:56 /u01/app/12.1.0/grid/cdata/rac-scan/day.ocr 0
rac1 2020/04/30 14:55:33 /u01/app/12.1.0/grid/cdata/rac-scan/week.ocr 0
Step 2: ocrdump
[root@rac1 ~]# ocrdump -backupfile /u01/app/12.1.0/grid/cdata/rac-scan/backup00.ocrStep 3: Bring down all instance and database before performing recovery of OCR.
[root@rac1 ~]# crsctl stop crsStep 4: Restore backup using OCR file we have got in ocrconfig -showbackup command.
[root@rac1 rac-scan]# ocrconfig -restore /u01/app/12.1.0/grid/cdata/rac-scan/backup00.ocrStep 5: Start CRS service on all node.
[root@rac1 ~]# crsctl start crsStep 6: Run the following command to verify OCR integrity, where the -n all argument retrieves a listing of all the cluster nodes that are configured as part of your cluster.
cluvfy comp ocr -n all
