Modifying the VSS Provider for Backups (Microsoft Hyper-V)

By default, the backups use the software Volume Shadow Service (VSS) provider from Microsoft.

You can configure backups to use the hardware VSS provider offered by other storage vendors. Using a hardware VSS Provider can improve the performance of backup operations. For  Hyper-V clusters, it reduces the amount of time that cluster shared volumes (CSV) are caught in redirected-access mode.

Before You Begin

Identify the VSS provider ID of the vendor.

To find the ID, on your Hyper-V host, at the command line prompt, run the following command:

vssadmin list providers

An example of a provider ID (for NetApp) is ddd3d232-a96f-4ac5-8f7b-250fd91fd102.


To use the vendor's VSS provider ID

  • On the Hyper-V host, configure the VSSProvider additional setting .

    For instructions on configuring an additional setting, see Add or Modify an Additional Setting.

    Provide the following inputs during the configuration:

    • Name: VSSProvider
    • Category: Default: VirtualServer
    • Type: Default: STRING
    • Value: The VSS Provider ID of the vendor


Subsequent backup operations will use the newly configured VSS Provider.