Tools for monitoring a PowerHA SystemMirror cluster

These are described in subsequent sections:

• Cluster Monitoring with Tivoli® allows you to monitor clusters and cluster components and perform cluster administration tasks through your Tivoli Framework console.
• clstat (the /usr/es/sbin/cluster/clstat utility) reports the status of key cluster components - the cluster itself, the nodes in the cluster, the network interfaces connected to the nodes, the service labels, and the resource groups on each node.
• Application Monitoring allows you to monitor specific applications and processes and define action to take upon detection of process death or other application failures. Application monitors can watch for the successful startup of the application, check that the application runs successfully after the stabilization interval has passed, or monitor both the startup and the long-running process.
• SMIT provides you information on the cluster.

  You have the ability to see the cluster from an application-centric point of view.

  • The Resource Group and Applications menu under C-SPOC (smit cl_admin) in SMIT has an option to Show the Current State of Applications and Resource Groups. You can also reach this panel from Cluster Applications and Resources > Resource Groups > Show All Resources by Node or Resource Group (from smit sysmirror).

  The System Management (C-SPOC) > PowerHA SystemMirror Services > Show Cluster Services SMIT panel shows the status of the PowerHA SystemMirror daemons.

• The Application Availability Analysis tool measures uptime statistics for applications with application controllers defined to PowerHA SystemMirror.
• The clRGinfo and cltopinfo commands display useful information on resource group configuration and status and topology configuration, respectively. For more information, see (Groups Information Commands).
• Log files allow you to track cluster events and history: The /var/hacmp/adm/cluster.log file tracks cluster events; the /var/hacmp/log/hacmp.out file records the output generated by configuration scripts as they execute; the /var/hacmp/adm/history/cluster. mmddyyyy log file logs the daily cluster history; the /var/hacmp/log/cspoc.log file logs the status of C-SPOC commands executed on cluster nodes. You should also check the RSCT log files.

In addition to these cluster monitoring tools, you can use the Custom Remote Notification utility allows you to define a notification method through the SMIT interface to issue a customized page in response to a cluster event. You can also send text messaging notification to any address including a cell phone.