There are two methods for OCR Backup (Oracle Cluster Registry)
1. Automatically generated OCR files under $CRS_HOME/cdata/crs
2. OCR export/logical backup
The Oracle Clusterware automatically creates OCR backups
-Every four hours: last three copies
-At the End of the Day: last two copies
-At the end of the week: last two copies.
To backup OCR file, copy the generated file from $CRS_HOME/cdata/crs to your backup directory (/backup/oracle).
You must run the backup as “root”.
Run the below command to take OCR export backup.
# ocrconfig -export export_file_name
Click here to learn Restore and Recovery OCR from Backup.
Click here to learn Voting disk Backup and Recovery.