Maintaining cluster information services
The cluster services on clients consist solely of the clinfoES daemon, which provides clients with status information about the cluster.
Note that the /etc/inittab file is modified when the PowerHA® SystemMirror® software is installed to start the clinfoES daemon whenever the system is rebooted.
The Cluster Information Daemon (clinfo) retrieves information about the cluster configuration and the state of the cluster, topology and resources from the Management Information Base (MIB) and the Cluster Manager on local or remote nodes. The Cluster Manager updates the MIB with this information.
The clinfo daemon populates internal, dynamically allocated data structures with information for each cluster. The cluster(s) can be any combination of local or remote. The clinfo daemon calls the clinfo.rc script in response to cluster changes.