Detecting Failure of the Standby Cluster

When a standby cluster for a given protection group fails, a cluster in the same partnership detects the failure. If the cluster that failed is a member of more than one partnership, multiple failure detections might occur.

During failure detection, the following actions occur:

• Heartbeat failure is detected by a partner cluster.

• The heartbeat is activated in emergency mode to verify that the standby cluster failed.

• The cluster notifies the administrator by issuing messages. The system detects all protection groups for which the cluster that failed was acting as standby. The state of these protection groups is set to the Unknown state.