Installation guide

Section 8.1:Displaying Cluster and Service Status 129
8 Cluster Administration
The following chapter describes the various administrative tasks involved in maintaining a cluster after
it has been installed and configured.
8.1 Displaying Cluster and Service Status
Monitoring cluster and service status can help identify and resolve problems in the cluster environ-
ment. The following tools assist in displaying cluster status:
• The clustat command
• Log file messages
• The cluster monitoring GUI
Note that status is always from the point of view of the cluster system on which an administrator is
running a tool. To obtain comprehensive cluster status, run a tool on all cluster systems.
Cluster and service status includes the following information:
• Cluster member system status
• Power switch status
• Heartbeat channel status
• Service status and which cluster system is running the service or owns the service
• Service monitoring status of the cluster system
The following tables describe how to analyze the status information shown by the clustat command
and the cluster GUI.
Table 8–1 Member Status
Member Status Description
UP
The member system is communicating with the other member system
and accessing the quorum partitions.
DOWN
The member system is unable to communicate with the other member
system.