Migrating from the System VSS Provider to a Hardware VSS Provider
Applies To: System Center Data Protection Manager 2010
If you are using the default system VSS provider and want to begin using the hardware VSS provider, you must do the following:
Install the hardware VSS provider on the host computer and ensure that your Storage Area Network (SAN) is configured for hardware snapshots.
Delete the %Programfiles%\Microsoft DPM\DPM\Config\DataSourceGroups.xml file from the DPM server.
Set the following registry key on the DPM server:
HKLM\Software\Microsoft\Microsoft Data Protection Manager\2.0\Configuration\MaxAllowedParallelBackups
To complete this process, you must run the Modify Protection Group Wizard for each protection group that protects the virtual machines on this cluster.