Acronis Backup for Windows Server Essentials - User Guide - Manual (Page 128)

128 Copyright © Acronis International GmbH, 2002-2014
Time diagram: Wait until conditions are met
Skip the task execution
Delaying a backup might be unacceptable, for example, when you need to back up data strictly at the
specified time. Then it makes sense to skip the backup rather than wait for the conditions, especially
if the events occur relatively often.
4.7.25 Volume Shadow Copy Service
These options are effective only for Windows operating systems.
Using Volume Shadow Copy Service
The option defines whether a Volume Shadow Copy Service (VSS) provider has to notify VSS-aware
applications that the backup is about to start. This ensures the consistent state of all data used by the
applications; in particular, completion of all database transactions at the moment of taking the data
snapshot by Acronis Backup. Data consistency, in turn, ensures that the application will be recovered
in the correct state and become operational immediately after recovery.
The preset is: Use Volume Shadow Copy Service.
Use VSS
When Use Volume Shadow Copy Service is selected, choose a snapshot provider from the following
list:

Hardware/software - Select automatically
VSS will use the hardware-based provider that supports the source volume. If none is found, VSS
will use Acronis VSS Provider.

Software - Select automatically