OCR:

1.) Login as root.

2.) Start CRS on all nodes:

root@oracle-server:/home/crs/bin[bin]# ./crsctl start crs

Attempting to start CRS stack

The CRS stack will be started shortly

root@oracle-server:/home/crs/bin[bin]# ./crsctl check crs

Failure 1 contacting CSS daemon

Cannot communicate with CRS

Cannot communicate with EVM

root@oracle-server:/home/crs/bin[bin]# ./crsctl check crs

CSS appears healthy

CRS appears healthy

EVM appears healthy

3.) Check OCR configuration/backups:

root@oracle-server:/home/crs/bin[bin]# ocrcheck

Status of Oracle Cluster Registry is as follows :

Version : 2

Total space (kbytes) : 262144

Used space (kbytes) : 2812

Available space (kbytes) : 259332

ID : 429958626

Device/File Name : /mnt/prdaudit_crs/crs

Device/File integrity check succeeded

Device/File Name : /mnt/prdaudit_crs/crs_mirror

Device/File integrity check succeeded

Cluster registry integrity check succeeded

root@oracle-server:/home/crs/bin[bin]# ocrconfig -showbackup

ac4-irauditdb-002 2008/04/10 23:47:02 /oracle/product/10.2.0/crs/cdata/ac4-iraudit-crs

ac4-irauditdb-002 2008/04/10 19:47:03 /oracle/product/10.2.0/crs/cdata/ac4-iraudit-crs

ac4-irauditdb-002 2008/04/10 15:47:04 /oracle/product/10.2.0/crs/cdata/ac4-iraudit-crs

ac4-irauditdb-002 2008/04/08 19:47:17 /oracle/product/10.2.0/crs/cdata/ac4-iraudit-crs

ac4-irauditdb-002 2008/04/03 15:47:53 /oracle/product/10.2.0/crs/cdata/ac4-iraudit-crs

4.) Copy the OCR mirror to the new location:

root@oracle-server:/mnt/prdaudit_crs[root@oracle-server prdaudit_crs]# ls -rlt

mtotal 38916

-rw-r–r– 1 oracle dba 10240000 Apr 11 02:27 vd2.old

-rw-r–r– 1 oracle dba 10240000 Apr 11 02:27 vd3.old

-rw-r—– 1 root dba 3121152 Apr 11 02:59 crs_mirror

-rw-r—– 1 root dba 3121152 Apr 11 03:22 crs

-rw-r–r– 1 oracle dba 10240000 Apr 11 03:23 vd1

root@oracle-server:/mnt/prdaudit_crs[root@oracle-server prdaudit_crs]# cp crs_mirror /mnt/prdaudit_crs_mirror1

Check the permission, it should be root:dba

5.) Change the OCR location in the CRS:

root@oracle-server:/home/crs/bin[bin]# ./ocrconfig -replace ocrmirror /mnt/prdaudit_crs_mirror1/crs_mirror

root@oracle-server:/home/crs/bin[bin]# ocrcheck

Status of Oracle Cluster Registry is as follows :

Version : 2

Total space (kbytes) : 262144

Used space (kbytes) : 2812

Available space (kbytes) : 259332

ID : 429958626

Device/File Name : /mnt/prdaudit_crs/crs

Device/File integrity check succeeded

Device/File Name : /mnt/prdaudit_crs_mirror1/crs_mirror

Device/File integrity check succeeded

Cluster registry integrity check succeeded

root@oracle-server:/home/crs/bin[bin]# exit