Sun Cluster Concepts Guide for Solaris OS

About Quorum Vote Counts

Use the scstat -q command to determine the following information:

For more information about this command, see scstat(1M).

Both nodes and quorum devices contribute votes to the cluster to form quorum.

A node contributes votes depending on the node's state:

Quorum devices contribute votes that are based on the number of votes that are connected to the device. When you configure a quorum device, Sun Cluster software assigns the quorum device a vote count of N-1 where N is the number of connected votes to the quorum device. For example, a quorum device that is connected to two nodes with nonzero vote counts has a quorum count of one (two minus one).

A quorum device contributes votes if one of the following two conditions are true:

You configure quorum devices during the cluster installation, or later by using the procedures that are described in Chapter 5, Administering Quorum, in Sun Cluster System Administration Guide for Solaris OS.