Cluster maintenance mode lets you temporarily suspend the cluster heartbeat while hardware maintenance is being performed. This is useful if you want to reset or power down the LAN switch without bringing down cluster servers. See Section A.0, Console Commands for Novell Cluster Services for more information.
If the master server in the cluster goes down while the cluster is in cluster maintenance mode, you must enter cluster maintenance off on all remaining cluster servers to bring the cluster out of maintenance mode. This is only necessary if the master server in the cluster goes down. If the master server in the cluster is up, you can enter cluster maintenance off on one server in the cluster to bring the entire cluster out of maintenance mode.