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Introduction

Microsoft provides a VSS Writer for Hyper-V Server to enable an online backup of virtual machines. If a backup is started with SEP sesam, snapshots of the virtual machines are created and then the .vhd files as well as the already created snapshots are backed up.

System requirements

• Microsoft Hyper-V Server with active Hyper-V VSS Writer
• SEP sesam Client since Version 3.6.4.24

Backup procedure

Create a new backup task for the Hyper-V client which contains the virtual machines.

After starting the backup, Hyper-V automatically creates snapshots for every active virtual machine.

Then the backup task starts for the defined machines.

Restore procedure

In case of a restore the corresponding virtual machine must be turned off. Afterwards single volumes (.vhd files), snapshots or the whole virtual machine can be restored.

• Example Restore of a single volume:

• Example Restore Snapshots:

Troubleshooting

To locate the Hyper-V VSS writer and to check the status of that writer type in the following command:

All VSS writers on that system are listed, also the Hyper-V writer