About restoring Exchange snapshot backups
From a snapshot backup you can restore the Microsoft Information Store or Exchange databases. If you enabled Granular Recovery Technology (GRT) for the backup, you can also restore mailbox and public folder items from the backup.
Note the following when you restore snapshot backups:
All of the images you select for the restore must be from snapshot backups.
Exchange allows a restore to the recovery database (RDB).
For Instant Recovery restores:
Select even if you want to perform volume rollback. NetBackup automatically rolls back volumes whenever it is appropriate
One of the following occurs:
NetBackup snaps back (resyncs) the selected database volumes from the snapshot to the original volume.
NetBackup copies back the files of the selected databases from the snapped volume to the original volume