I have the same problem when using VSA. When creating a HA, devices are not synchronized. The script SyncHaDevice.ps1 gives an error: 1/9 7:39:29.380643 120 FileBrowser: *** CFileBrowser::parsePath: Could not create image : provided path has invalid extension! 1/9 7:39:29.380696 120 Srv: *** iScsiSe...

I myself will answer here.
For VSA you need to specify:
$imagePath="VSA Storage\mnt\Datastore1"

I think this should be noted in the comments in the sample script .

You may also need to do $device.MarkAsSynchronized() in primary node.
An example is given in the script syncHaDevice.ps1

I am also trying to create a HA on VSA. I get the same error. Does this mean that there is still no support for VSA?

StarWind Virtual Storage Appliance v8.0.0 (Build 14398, [SwVSA]