Troubleshooting › Virtual Machine Backup and Restore Related › Hyper-V failed to Create VSS Snapshot

Hyper-V failed to Create VSS Snapshot

The Hyper-V Host-Based VM backup fails on a Hyper-V host and displays the following message

Failed to take VSS snapshot.

Symptom

The following reasons are responsible for the backup failure:

• One or more volumes on the Hyper-V host is not formatted with NTFS/Refs.
• One or more volumes on the Hyper-V host has less than 100 MB of free space.
• Excessive disk activity during the time of the backup.

Solution

Resolve the environmental issues and perform the backup again.