Oracle CRS backs up the OCR automatically at regular intervals.
The standard backup frequency and retention policies are
- Every 4 hours – keeping the last 3 copies.
- Every day (at the end) – keeping the last 2 copies.
- Every week (at the end) – keeping the last 2 copies.
You can find the location of the backup as well as which node carries out the backup (only one node backs up the OCR) with the following command:
ocrconfig -showbackup auto
The files may not all be on the node that caries out the backups because of outages.
