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Failover Cluster Manager 2012 Showing Wrong Disk Resource - Fix by Powershell

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On Server 2012 Failover Cluster Manager, we have one Hyper-V virtual machine that is showing the wrong storage resource.  That is, it is showing a CSV that is in no way associated with the VM.  The VM has only one .vhd, which exists on Volume 16.  The snapshot file location and smart paging file are also on Volume 16.  This much is confirmed by using the Failover Cluster Manager to look at the VM settings.  If you start into the "Move Virtual Machine Storage" dialog, you can see the .vhd, snapshots, second level paging, and current configuration all exist on Volume 16.  Sounds good.

However, if you look at the resources tab for the virtual machine, Volume 16 is not listed under storage.  Instead, it says Volume 17, which is a disk associated with a different virtual machine.  That virtual machine also (correctly) shows Volume 17 as a resource.

So, if everything is on Volume 16, why does the Failover Cluster Manager show Volume 17, and not 16, as the Storage Resource?  Perhaps this was caused by an earlier move with the wrong tool (Hyper-V manager), but I don't remember doing this.

In Server 2003, there was a "refresh virtual machine configuration" option to fix this, but it doesn't appear in Failover Cluster Manager in Server 2012.

Instead, the only way I've found to fix the problem is in PowerShell.

  Update-ClusterVirtualMachineConfiguration "put configuration name here in quotes"

You would think that this would be an important enough operation to include GUI support for it, possibly in the "More Actions" right-click action on the configuration file.


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