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BladesAway asked on

Hyper-V avhd files and importing existing machine

I have a VM that went off line because the CSV ran out of space.  Now I can't get the machine to come back up because VMM sees it as Unsupported Cluster Configuration.  I have tried repair from VMM but that does not work.

I have looked at the storage location and the primary drive for the VM has about 5 additional avhd files.   If I rebuild the VM and use the primary file the machine does not come up in the state that it was most currently -- I assume the avhd files hold all the changes that have been made since the server was first deployed.

My question is, seeing as I have the VM files and all the VHD and AVHD files, how do I go about getting this machine backup and running?  I have tried importing but get an error when attempting to do that.

Thank you.
Windows Server 2008ExchangeVirtualizationHyper-V

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8/22/2022 - Mon
Scott C

What is the exact error you are getting including error codes if any?

the AVHD files are created when your have taken a snapshot against the VM. If you delete these without merging the snapshot first you will loose data and even potentially corrupt the VM.

The import function in Hyper-V will import exports of the VM (An export basically copies the Config files for the VM, VHD AVHD and Snapshot config in otherwords everything the machine needs to import again.)

You could try exporting and then re-importing but I don't think this will solve your problem. Like ScottCha said it would help to see the error message.

From VMM the exact error message is: Unsupported Cluster Configuration.  After I attempt to refresh I get an Error 2915.  Stating that the WS-Manager cannot process the request.  

I have other VMs on the same host and can manage them OK without error.
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Does this happen when you try to use the Hyper-V manager instead of VMM as well?

Has anything changed on the VM in the way of Configuration or have any snapshots been deleted?

I had to take the volume offline while that machine was paused.  The volume is back online and I can see all of the VM files.   There were no snapshots made.  I am not sure how the AVHDs came to be.

From Hyper-V manager on the host that had the machine, the machine is not show n there.
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