Pre-backup settings for Hyper-V
For SMB 3.0 shares used as storage for Hyper-V
Starting from version 16.5 released in May 2016, it is possible to back up and restore Hyper-V machines that have some or all their virtual disks on an SMB 3.0 share.
Please make sure you meet the following conditions before you start backing up such a virtual machine.
- The Hyper-V host and the SMB3 server must belong to the same Active Directory domain.
- The SMB3 server must have the File Server VSS Agent Service installed.
- The network share on the SMB3 server must be created with the "Applications" profile (under Select Profile, select SMB Share — Applications). View Microsoft instructions.
- The Hyper-V host (namely its Local System account) must have full access to the network share (the Permissions step of the installation wizard). See this Microsoft article for detailed instructions.
Increasing backup speed (optional)
To take advantage of the best possible backup speed, you can enable the volume snapshot integration service (also referred to as the volume checkpoint in the newer versions of Hyper-V). This lets the Backup Manager use the help of native VSS writers during backups. It improves backup speed and reduces the amount of data transmitted to the cloud.
- Start the Hyper-V Manager.
- Right-click the virtual machine you want to back up. Choose Settings from the context menu.
- Go to Management > Integration services. Enable the Backup (volume checkpoint) option (or Backup (volume snapshot) in the older versions of Hyper-V).