Arul's Oracle Zone

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Oracle RAC Clusterware: Voting disks

Posted by Arul Ramachandran on December 28, 2007

Say, you’ve just joined a new client, you are in a new RAC environment and you are trying to figure out the different components of the cluster.

The voting disk is one such component in 10g RAC that is used to store the hearbeat information between nodes. Like OCR, the voting disk also is a shared disk component that is accessed by the nodes during the cluster operation. If a node is unable to ping the voting disk, the cluster immediately detects a communication failure and the node is evicted from the cluster to keep the cluster healthy.

crsctl command can be used to check out the voting disk info of a cluster. Here is the usage of crsctl to determine the voting disks.

$ crsctl query css votedisk
0. 0 /dev/vx/rdsk/ocrdg/vdvol00
1. 0 /dev/vx/rdsk/ocrdg/vdvol01
2. 0 /dev/vx/rdsk/ocrdg/vdvol02

This entry was posted on December 28, 2007 at 4:54 pm and is filed under RAC. 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.

One Response to “Oracle RAC Clusterware: Voting disks”

  1. cooldba-Knowledge is Power,spread it. said

    May 31, 2011 at 3:49 am

    good short and sweet .. informative

    Reply

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