11gR2 OCR mirroring with External Redundancy

In case of Normal or High redundancy OCR does not require to be mirror. But if you want
to make OCR mirroring to another diskgroup when external redundancy is used then follow below procedure.

1)ALTER DISKGROUP OCR_VOTING2 SET ATTRIBUTE ‘COMPATIBILITY.ASM’=’11.2’;
2) Connect to the server as root. and execute ocrconfig command from the $GRID_HOME/bin directory.

[root@prddb3 bin]# ./ocrconfig -add +OCR_VOTING2
3)To verify if the new OCR file is created and the /etc/oracle/ocr.loc file is updated with the new file information.

[root@prddb3 bin]# cat /etc/oracle/ocr.loc
The ocrcheck command reflects two OCR locations

[root@prddb3 bin]# ./ocrcheck

..log/hostname/client/ocrconfig_25560.log