Lost, deleted or corrupted a voting disk (quorum) in Oracle RAC 10.2 ?

Hi Folx,

whenever you lost, deleted or corrupted a quorum aka voting disk in Oracle Real Application Cluster (RAC) 10.2, you have three options:

1) Reinstall your Clusterware, see Metalink Note 279793.1

2) Replay a backup taken with
“dd if=/dev/votingdisk of=/backup/votingfile bs=4k”

3) Have a look at Metalink Note 399482.1 and the RAC Administration and Deployment Guide at
RAC Administration and Deployment Guide:
You will find the
“crsctl add css votedisk /dev/xyz [-force]” and the
“crsctl delete css votedisk /dev/xyz [-force]”
commands most useful, I guess.

You may want to use them on a “cold” RAC, so no (further) corruption must be feared. This is the only situation you can savely use the -force option. On “hot” RAC, -force probably will destroy your setup.

If you have only one single corrupted voting disk (like I had), you can add a “dummy” one (loopback device or spare LUN), drop the old/real one, create a new voting disk on the old device, and drop the dummy. Worked very well.

Good luck,
Usn




You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

Leave a Reply