Removing a Quorum Device Using scconf -rq Causes Cluster Panic (4811232)

Problem Summary: If you execute the scconf -rq command to remove a quorum device in a vulnerable configuration, all nodes of the cluster will panic with the message

CMM lost operational quorum

Workaround: To remove a quorum device from a cluster, first check the output of scstat -q. If the quorum device is listed as having more than one vote in the Present column, then the device should first be put into maintenance mode using scconf -cq globaldev=QD,maintstate. After the command completes and the quorum device is shown in scstat -q as having 0 votes present, the device can be removed using scconf -rq.