Automatic cluster configuration monitoring

Verification automatically runs on one user-selectable PowerHA® SystemMirror® cluster node once every 24 hours.

By default, the first node in alphabetical order runs the verification at midnight. If verification finds errors, it warns about recent configuration issues that might cause problems at some point in the future. PowerHA SystemMirror stores the results of the automatic monitoring on every available cluster node in the /var/hacmp/log/clutils.log file.

If cluster verification detects some configuration errors, you are notified about the potential problems:

  • The exit status of verification is published across the cluster along with the information about cluster verification process completion.
  • Broadcast messages are sent across the cluster and displayed on stdout. These messages inform you about detected configuration errors.
  • A cluster_notify event runs on the cluster and is logged in hacmp.out (if cluster services is running).

More detailed information is available on the node that completes cluster verification in /var/hacmp/clverify/clverify.log file. If a failure occurs during processing, error messages and warnings clearly indicate the node and reasons for the verification failure.