When using vSphere or Hyper-V as your target environment for your Target Machine, you can utilise Snapshots to make your Hot Standby setup even more resilient. By using snapshotting, you can ensure that with each (or a defined repeat) replication from your Source Machine to your Target Machine you can take a snapshot
In the event there is a problem on your Source Machine, that could get replicated to your Target Machine; an example could be where your source machine became infected by a virus, or a file was deleted. By using snapshotting, you do not have to rely upon the latest replication in case of a disaster where you need to activate your Target Machine, you can use one of the earlier snapshots instead.
Creating Snapshots with Hot Standby
If configured during the create job wizard, Hot Standby creates snapshots of your Target Machines at chosen intervals.
For more information on the snapshotting process for vSphere, please read the following article:
or for more information on the snapshots for Hyper-V, please read the following article: