How to Restore ocrconfig on Oracle RAC

  1. Stop clusterware force.
~]# $GRID_HOME/bin/crsctl stop crs -f
  1. Show ocrconfig backup.
~]# $GRID_HOME/bin/ocrconfig -showbackup

oracle11gasm01     2026/05/26 15:25:13     /u01/app/11.2.0/grid/cdata/rac-cluster/backup00.ocr

oracle11gasm01     2026/05/26 11:25:12     /u01/app/11.2.0/grid/cdata/rac-cluster/backup01.ocr

oracle11gasm01     2026/05/26 07:25:10     /u01/app/11.2.0/grid/cdata/rac-cluster/backup02.ocr

oracle11gasm01     2026/05/25 03:24:55     /u01/app/11.2.0/grid/cdata/rac-cluster/day.ocr

oracle11gasm01     2026/05/23 23:24:42     /u01/app/11.2.0/grid/cdata/rac-cluster/week.ocr
PROT-25: Manual backups for the Oracle Cluster Registry are not available
  1. Start clusterware with exclusive mode and not start crsd.
~]# $GRID_HOME/bin/crsctl start crs -excl -nocrs
~]# $GRID_HOME/bin/crsctl stat res -t -init | grep -E -A1 'ora.crsd|ora.asm'
ora.asm
      1        ONLINE  ONLINE       oracle11gasm01           Started
--
ora.crsd
      1        OFFLINE OFFLINE
  1. Restore ocrconfig.
~]# $GRID_HOME/bin/ocrconfig -restore /u01/app/11.2.0/grid/cdata/rac-cluster/backup00.ocr
~]# $GRID_HOME/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          3
         Total space (kbytes)     :     262120
         Used space (kbytes)      :       2940
         Available space (kbytes) :     259180
         ID                       : 1688355883
         Device/File Name         :       +OCR
                                    Device/File integrity check succeeded

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

         Cluster registry integrity check succeeded

         Logical corruption check succeeded

~]# $GRID_HOME/bin/crsctl stop crs -f
  1. Start clusterware.
~]# $GRID_HOME/bin/crsctl start crs