Once a snapshot set has been created, it can be refreshed quickly since the time-consuming step of preparing the mirrors is not required.
Normally, if you want to periodically refresh a snapshot set, you set up a snapshot schedule using the VSS Exchange Snapshot Scheduler Wizard or the Quick Recovery Configuration Wizard.
However, you can also manually refresh a snapshot set. This requires the following tasks:
Reattach (snapback) the snapshot
This operation reattaches and resynchronizes an existing snapshot set so that it matches the current set of its original Exchange mailbox database.
You can perform this operation from the VEA GUI using the VSS Snapback wizard or from the command line using the vxsnap reattach command.
Create the refreshed snapshot set using either the VSS Exchange Snapshot Wizard or the vxsnap create command