Bunker replication does not support using the automated failover capability of a VCS global cluster. Because the data on the bunker cannot be used after the Secondary is converted to the Primary role, you must replay the bunker before the failover. If a VCS global cluster is configured on the Primary and Secondary clusters, make sure that the failover to the Secondary is not automated if a bunker is configured. To do this, set the ClusterFailOverPolicy attribute for the global group to Manual.

If the Primary cluster fails, update the Secondary from the bunker.

See Updating the Secondary from the bunker.

After the Secondary is updated, do the failover to the Secondary.