Network Administrator Knowledgebase

Dec 30 2008   8:10PM GMT

How to enable Windows Server Backup support for the Hyper-V VSS Writer

Michael Khanin Michael Khanin Profile: Michael Khanin

To be able use VSS based backups of Hyper-V VMs using Windows Server Backup, we need to add the following registry keys to register the Hyper-V VSS Writer with Windows Server Backup. WindowsServerBackup key is not created when we install the Windows Server Backup feature. We have to create this key manually.

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT
\CurrentVersion\WindowsServerBackup\Application Support\{66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}

When the keys listed above created, we also need to create a String Value with the following parameters / settings:

Name: Application Identifier
Type: REG_SZ
Value: Hyper-V

When backing up virtual machines, we must select all volumes where VM related files is present, because Windows Server Backup only supports volume based backups.

For more information about Hyper-V virtual machine backups, take a look on the KB958662.

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