4.2.1 How to Stop Sun Cluster on a Cluster Node

1. If it is not necessary to have the data remain available, place the logical hosts (disk groups) into maintenance mode.

   phys-hahost2# haswitch -m logicalhost

   Refer to the haswitch(1M) man page for details.

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   Note -

   It is possible to halt a Sun Cluster node by using the halt(1M) command, allowing a failover to restore the logical host services on the backup node. However, the halt(1M) operation might cause the node to panic. The haswitch(1M) command offers a more reliable method of switching ownership of the logical hosts.

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2. Stop Sun Cluster on one node without stopping services running on the other nodes in the cluster.

   phys-hahost1# scadmin stopnode

3. Halt the node.

   phys-hahost1# halt

   The node is now ready for maintenance work.