Arbitration For Data Integrity in Serviceguard Clusters, July 2007

Arbitration for Data Integrity in Serviceguard Clusters
Use of a Quorum Server as the Cluster Lock
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Specifying a Quorum Server
If you will be using a quorum server, be sure to specify the -q qshost
option with the cmquerycl command. Example:
# cmquerycl -v -n lp1 -n lp2 -q lp-qs -C clus-lp.config
Quorum Server Status and State
The status of the quorum server can be one of the following:
• Up. The quorum server is active.
• Down. The quorum server is not active.
The state of the quorum server can be one of the following:
• Running. Quorum services are active and available.
• Unsupported Version. There is a version mismatch between
Serviceguard and Quorum Server.
• Access Denied. The Serviceguard node is not authorized to access
the quorum server system.
• Unknown. Serviceguard cannot determine whether the quorum
server is up or down. This may happen when the quorum server
cannot be reached from the current node.