You can use a dedicated workstation or administrative console to reach the cluster nodes or the terminal concentrator as needed to administer the active cluster. For more information, see Chapter 1, Introduction to Administering Oracle Solaris Cluster, in Oracle Solaris Cluster System Administration Guide .
You use the administrative console for remote access to the cluster nodes, either over the public network, or optionally through a network-based terminal concentrator.
Oracle Solaris Cluster does not require a dedicated administrative console, but using one provides these benefits:
Enables centralized cluster management by grouping console and management tools on the same machine
Provides potentially quicker problem resolution by your hardware service provider