Back up and restore a Hyper-V VM by using BMR and data backup
Consider the following scenario:
- You have a Hyper-V host that's running Windows Server 2012 R2.
- The Hyper-V Virtual Machines data resides somewhere other than on the system drive.
- You back up VM data and bare metal recovery (BMR) by using Windows Server Backup (WSB).
When you create a system restore (BMR) by using Windows Server Backup (WSB), it only backs up critical volumes. Therefore, all the files, data, and Hyper-V VM files that reside on other volumes are not backed up, and you achieve only a partial data backup. This is the expected behavior.
To resolve this issue, follow these steps:
- Boot into the WinRE, and make sure that the Only Restore System Drives option is selected, as shown here.
- After the BMR is restored, restore the Hyper-V–specific backup by using Windows Server Backup.
This two-step process makes sure that the VMs and the data are fully restored.
As a best practice, make backups of all the volumes along with the BMR. Also restore the BMR plus non-critical volumes for seamless operations.
For more information about BMR, see https://blogs.technet.microsoft.com/askcore/2011/05/12/bare-metal-restore.
Article ID: 3171712 - Last Review: 06/23/2016 16:33:00 - Revision: 1.0
Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard