Avamar: Plug-in for Hyper-V VSS Error 0000 Failed to Get Current Hyper-V Node Name

During a restore of a Hyper‑V VM from one cluster to another, the plug‑in logs the following messages:

2017-05-08 17:14:09 avhypervvss Info : Could not get the current owner name for VMNAME. Will try to restore to the node that owned this VM at backup.
2017-05-08 17:14:09 avhypervvss Info : The cluster node that owned VMNAME at backup is not running.
2017-05-08 17:14:09 avhypervvss Info : Attempting to restore the VMNAME to the current node.
2017-05-08 17:14:09 avhypervvss Error : Failed to get the current hyper‑v node name.

The restore operation fails because the plug‑in cannot determine the current Hyper‑V node.

The --federated flag was present in the C:\Program Files\avs\var\avhypervvss.cmd file. This flag causes the plug‑in to attempt to retrieve the node name from a federated configuration, which fails when the command starts on a non‑federated cluster, leading to the “Failed to get the current hyper‑v node name” error.

1. Open the file C:\Program Files\avs\var\avhypervvss.cmd in a text editor.
2. Locate the --federated flag in the command line.
3. Remove the --federated flag so that it is not present in this file.
4. Save the file and retry the restore operation. The --federated flag should only exist in the cluster‑specific var folder.