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Is a quorum disk/partition needed for a two-node cluster?

April 26, 2017cluster disk needed partition quorum two-node

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Is a quorum disk/partition needed for a two-node cluster?

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In older versions of the Cluster Project, a quorum disk was needed to break ties in a two-node cluster. Early versions of Red Hat Enterprise Linux 4 (RHEL4) did not have quorum disks, but it was added back as an optional feature in RHEL4U4. In RHCS 4 update 4 and beyond, see the man page for qdisk for more information. As of September 2006, you need to edit your configuration file by hand to add quorum disk support. The system-config-cluster gui does not currently support adding or editing quorum disk properties.