Sun Cluster Geographic Edition software uses the logical hostname of a cluster for inter-cluster management communication and heartbeat communication. The IP address for a cluster name must be available for Sun Cluster Geographic Edition software to wrap a logical hostname around the IP address when the software is started by using the geoadm start command.
You can use the cluster command to find the name of the cluster when you need to verify that the cluster name is suitable for use as a hostname. To find the name of the cluster, run the following command:
# cluster list
For more information, see the cluster(1CL) man page.