Recovering the OCR by Using Physical Backups

Locate a physical backup:
$ ocrconfig –showbackup

Stop the Oracle Clusterware stack on all nodes:
# crsctl stop cluster -all

Stop Oracle High Availability Services on all nodes:
# crsctl stop crs

Restore the physical OCR backup:
# ocrconfig –restore /u01/app/.../cdata/cluster01/day.ocr

Restart Oracle High Availability Services on all nodes:
# crsctl start crs

Check the OCR integrity:
$ cluvfy comp ocr -n all


Related Link:

Managing Oracle Cluster Registry and Voting Disks