Hardware manual

Group Administration Data recovery
13–3
See Replicating a recovery volume to the primary group.
3. When you are ready to fail back to the primary g
roup, use the Failback to Partner operation to:
• Set the recovery volume offline.
• Perform a final replication to synchronize the volume data
across both groups.
• Demote the recovery volume to an inbound replica set.
• Promote the failback replica set to a volume and snapshots. The volume re
presents the data that was in the
most recent complete replica. The snapshots correspond to any additional replicas.
See Failing back to the primary group.
At this point, initiators can co
nnec
t to the volume on the primary group and replication can continue as usual. By
default, the failback baseline is reestablished.
Example of failing over and failing back a volume
An example of how to fail over a volume to the secondary group and then fail back to the primary group is shown
in Figure 13-1 to Figure 13-5. Figure 13-1 shows the replication configuration, where GroupA is replicating
Vo
lume1 to GroupB.
Figure 13-1: No Failure – Data Is Available