How to list OCR backups and take a manual OCR backup in Oracle RAC

OCR is auto-backed-up by Oracle every 4 hours and once a day. ocrconfig -showbackup lists what is on disk; -manualbackup cuts a fresh one on demand, useful right before patching or a risky change.

The manual backup writes to the OCR backup location. Verify free space in that location first, and run as the Grid Infrastructure owner (grid or oracle).

# List OCR backups
$GRID_HOME/bin/ocrconfig -showbackup

# Take a manual OCR backup on demand
$GRID_HOME/bin/ocrconfig -manualbackup