Put a global-cluster node into maintenance state when taking the node out of service for an extended period of time. This way, the node does not contribute to the quorum count while it is being serviced. To put a node into maintenance state, the node must be shut down with the clnode evacuate and shutdown commands. For more information, see the clnode(1CL) and cluster(1CL) man pages.
When a cluster node is shut down and put in maintenance state, all quorum devices that are configured with ports to the node have their quorum vote counts decremented by one. The node and quorum device vote counts are incremented by one when the node is removed from maintenance mode and brought back online.
Use the clquorum disable command from another node that is still a cluster member to put a cluster node into maintenance state. For more information, see the clquorum(1CL) man page.
The phys-schost# prompt reflects a global-cluster prompt. Perform this procedure on a global cluster.
This procedure provides the long forms of the Oracle Solaris Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical.
The clnode evacuate command switches over all resource groups and device groups from the specified node to the next-preferred node.
phys-schost# clnode evacuate node
phys-schost# shutdown -g0 -y -i0
phys-schost# clquorum disable node
phys-schost# clquorum status node
The node that you put into maintenance state should have a Status of offline and 0 (zero) for Present and Possible quorum votes.
The following example puts a cluster node into maintenance state and verifies the results. The clnode status output shows the Node votes for phys-schost-1 to be 0 (zero) and the status to be Offline. The Quorum Summary should also show reduced vote counts. Depending on your configuration, the Quorum Votes by Device output might indicate that some quorum disk devices are offline as well.
[On the node to be put into maintenance state:] phys-schost-1# clnode evacuate phys-schost-1 phys-schost-1# shutdown -g0 -y -i0 [On another node in the cluster:] phys-schost-2# clquorum disable phys-schost-1 phys-schost-2# clquorum status phys-schost-1 -- Quorum Votes by Node -- Node Name Present Possible Status --------- ------- -------- ------ phys-schost-1 0 0 Offline phys-schost-2 1 1 Online phys-schost-3 1 1 Online
To bring a node back online, see How to Bring a Node Out of Maintenance State.