The clinfo command displays cluster configuration information
about the node from which the command is executed.
Without arguments, clinfo returns an exit status of 0 if the node is configured and booted as part of a cluster. Otherwise, clinfo returns an exit status of 1.
Displays the highest node number allowed in the cluster. This is different from the maximum number of nodes supported in a given cluster. For example, clinfo -h might return 64, meaning that the highest number you can use to identify a node is 64. See the Sun Cluster 3.0 System Administration Guide for a description of utilities you can use to determine the number of nodes in a cluster.
-n
Prints the number of the node from which clinfo is executed.