Specifying message queues

You can either specify a cluster message queue or a failover message queue. These message queues help you determine causes of failures in your PowerHA® environment.

A cluster message queue is used for cluster-level messages and provides one message, which controls all cluster resource groups (CRGs) failing over to a specific node. A failover message queue is used for CRG-level messages and provides one message for each CRG that is failing over.

Specifying a cluster message queue

To specify a cluster message queue use the Start Cluster Resource Group (STRCRG) command or the Change Cluster Resource Group (CHGCRG) command