C.4.5 Sun Cluster HA for Tivoli Fault Probes

Sun Cluster HA for Tivoli uses only a local fault probe. It runs on the node on which the Tivoli object dispatcher, the oserv daemon, is currently running.

The fault probe uses the Tivoli command wping to check the status of the monitored oserv daemon. The wping of an oserv daemon can fail for the following reasons:

• The monitored oserv daemon is not running.

• The oserv daemon on the server dies while monitoring a client oserv daemon.

• Proper Tivoli roles (authorization) have not been set for the administrative user. See the Sun Cluster 2.2 Software Installation Guide for details about Tivoli.

If the local probe fails to ping the oserv daemon, it initiates a failover by invoking the hactl(1M) command. The fault probe will perform one local restart before initiating a failover.