Use this page to confirm the volume pairs on which to run the recovery
failback operation to allow changed data to be sent back to your production
site to synchronize the volume pairs.
Introduction
When
you perform a failback operation, only changed data is sent to your production
site to synchronize the volumes, thereby helping to reduce the time required
to complete the failback operation. A failover operation is followed by a
failback operation after a path from the recovery site to the production site
is created.
During the failback process, your current source volume
at your production site becomes a target volume of your new failback operation
at your recovery site. After the process runs, the volume pairs at the recovery
site are resynchronize with their peer volumes at the production site. The
storage unit ensures that the volumes that are resynchronized are the volumes
that were originally established. The recovery failback is done on the tracks
that is associated with the specified
storage unit when you click
OK.
Note: Volumes
sizes for operations that use failover and failback must be the same; otherwise,
the failback operation fails.