Notes and restrictions on VSS

The following notes apply to local backup and to alternate client backup:

Supports backup of Storage Foundation for Windows 4.1 or later logical volumes OR backup of file systems on supported disk arrays.
Supports backup of Windows NTFS file systems on a disk partition, and backup of data in a database. The policy type can be MS-Exchange-Server or MS-Windows.
Does not support the backup of Windows system-protected files (the System State, such as the Registry and Active Directory). If the volume containing the data to back up includes Windows system files, that volume cannot be backed up with the VSS snapshot method.
Does not support the backup of Windows system database files (such as RSM Database and Terminal Services Database).

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