White Papers

11 Disaster Recovery with Dell PS Series SANs and VMware vSphere Site Recovery Manager | TR1073
replica volume but should be configured based on the expected amount of change and the number of
replicas you wish to keep.
The third section will set aside a percentage of this volume in the local replica reserve to keep track of
changes made during the replica process. This is also where Fast Failback Snapshots are stored in
the event you are failing back from a replica set. This can either come from local replica reserve or
free space by selecting Allow temporary use of free pool space.
Note: These settings can easily be changed later be selecting Modify replication settings in the volume’s
activities pane.
4. Choose your options in each section and click Next.
5. In the Advanced Settings screen, you can keep failback snapshot. Fast failback keeps a copy of the
most recent replica on the protected array. SRM allows administrators to “reprotect”, or automate fail-
back, to the original protected site after the cause of the failover has passed. Leveraging fast failback,
results in shorter recovery time as only the changes at the recovery site need to be replicated back to
the protected site. Make your selection and click Next.