Backing up OCR and Voting Disk

Backup OCR
============

There are a couple of methods to backup the OCR.

Note: Oracle automatically backs up the OCR every 4 hours.


BAckup can be done using the ocrconfig tool to add a backup location.

ocrconfig -backuploc

Note:This command has to be run as root



A logical backup can be taken using the ocrconfig tool.

ocrconfig -export

a logical backup can only be imported using the ocrconfig tool.

ocrconfig -import



A OCR mirror location can be specified for Oracle 10GR2 using ocrconfig.

ocrconfig -replace ocrmirror



BAckup Voting disk
===================

When raw devices are used for the voting disks, backup on UNIX platform can be taken by dd command


dd if=/dev/rdsk/vot1 of=$ORACLE_HOME/votebackup/