Monitoring cluster services

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After checking cluster, node, and network interface status, check the status of the PowerHA® SystemMirror® and RSCT daemons on both nodes and clients.

Monitoring cluster services on a node

Depending on what you need to know, you may access the following for information:

  • View Management Information Base (MIB)
  • Look for cluster events and errors in the hacmp.out file.
  • Use SMIT to check the status of the following PowerHA SystemMirror subsystems on a node:
    • Cluster Manager ( clstrmgrES ) subsystem
    • SNMP ( snmpd ) daemon.
    • Clinfo ( clinfoES ) Cluster Information subsystem.
    • To view cluster services on a node, enter the fastpath smit clshow

      A panel similar to following appears.

      COMMAND STATUS

Command: OK  stdout: yes stderr: no

Before command completion, additional instructions may appear below.

Subsystem     Group  PID     Status
clstrmgrES    cluster18524   active
clinfoES      cluster15024   active

Monitoring cluster services on a client

The only PowerHA SystemMirror process that can run on a client is the Cluster Information (clinfo) daemon. (Not all clients run this daemon.) You can use the AIX® lssrc command with either the -g cluster or -s clinfoES arguments to check the status of the clinfo subsystem on a client. The output looks similar to the following:

Subsystem   Group   PID   Status

clinfoES    cluster 9843  active

You can also use the ps command and grep for "clinfo." For example:

ps -aux | grep clinfoES