PRIMECLUSTER Installation and Administration Guide 4.1 (for Solaris(TM) Operating System)

13.1.5 Standby Operation

In the server cluster topology, the online node runs as the NetWorker server, and the standby node runs as a NetWorker client. The NetWorker process is monitored on the standby node. If NetWorker on the standby node is abnormally terminated, RMS attempts to restart NetWorker once. If it does not start normally, the NetWorker user application resource enters the faulted state. When a failure occurs, and the monitoring process is killed, the standby node enters Faulted. The Faulted node can restart the standby operation by clearing the faulted state if the database on the standby node is not damaged.

Also, if the NetWoker server is mistakenly booted on the standby node, the NetWorker process monitoring facility considers it as an error and notifies RMS of the error. Then, RMS brings that node Faulted.