Tuesday, May 3, 2011

How to Backing Up OCR file in oracle 11g RAC ?

How to Backing Up OCR file in oracle 11g RAC


Oracle performs physical backup of OCR devices every 4 hours under the default backup direcory $ORA_CRS_HOME/cdata/
and then it rolls that forward to Daily, weekly and monthly backup. You can get the backup information by executing below command.

ocrconfig -showbackup

[root@node1-pub ~]# ocrconfig -showbackup

node2-pub 2007/09/03 17:46:47 /u01/app/crs/cdata/test-crs/backup00.ocr

node2-pub 2007/09/03 13:46:45 /u01/app/crs/cdata/test-crs/backup01.ocr

node2-pub 2007/09/03 09:46:44 /u01/app/crs/cdata/test-crs/backup02.ocr

node2-pub 2007/09/03 01:46:39 /u01/app/crs/cdata/test-crs/day.ocr

node2-pub 2007/09/03 01:46:39 /u01/app/crs/cdata/test-crs/week.ocr
[root@node1-pub ~]#


Manually backing up the OCR

ocrconfig -manualbackup <<--Physical Backup of OCR

The above command backs up OCR under the default Backup directory. You can export the contents of the OCR using below command (Logical backup).

ocrconfig -export /tmp/ocr_exp.dat -s online <<-- Logical Backup of OCR

1 comment:

chandu reddy said...

For More on OCR & VD : http://chandu208.blogspot.com/2011/04/ocr-file-and-voting-disk-administration.html