(Windows platform only.) Enable Volume Shadow Copy defines whether to enable Microsoft Volume Shadow Copy Service (VSS) for the backup set.
Volume Shadow Copy | Action |
Enabled | Create a snapshot of the data to be backed up for exclusively opened file. |
Disabled | Do not create a snapshot of the data to be backed up for exclusively opened file. Error message will be shown for files that are opened during the backup process. |
Enabling the Volume Shadow Copy option will allow backup of local files that are exclusively opened during the backup process (e.g. Outlook PST file).
For more technical information on Volume Shadow Copy, please refer to following page from Microsoft for details:
http://technet.microsoft.com/en-us/library/cc785914(WS.10).aspx