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"Unsupported cluster configuration" VMM

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Applies to:

System Center Virtual Machine Manager (SCVMM) CB (2016)

Windows Server 2016

Hyper-V 2016

In Virtual Machine Manager (VMM), the VM’s show up as "Unsupported cluster configuration".

The following WMI query

gwmi -Namespace root/microsoft/windows/storage -class MSFT_PhysicalDisk

would return a blank value.

gwmi -class Win32_diskdrive

would return a value.

So it was specific to the Namespace root/microsoft/windows/storage and class MSFT_PhysicalDisk.

WMI repository was fine.

WMI-activity debug logging didn't show anything, because it handed off the COM call to the other process.

A debug by Michael Sadoff (WinDbg) showed that it was querying a "Storage service".

Cause:

"Microsoft Storage Spaces SMP" service was set to disabled.

Note: SMP == Storage Management Provider.

Solution:

The "Microsoft Storage Spaces SMP" service should be set to Manual and started. (The default value).

Moral of the story:

One more reason to be careful about what services to disable.

[Update on 10/05/2017]: The information about this service has been added to:

Guidance on disabling system services on Windows Server 2016 with Desktop Experience
/en-us/windows-server/security/windows-services/security-guidelines-for-disabling-system-services-in-windows-server#microsoft-storage-spaces-smp

Thanks,

Yong Rhee

P.S. My colleague Chuck Timon also had another scenario where the same error had popped up, and how he went about troubleshooting:
Working Through an Unsupported Cluster Configuration Scenario in Virtual Machine Manager
https://blogs.technet.microsoft.com/scvmm/2013/09/10/working-through-an-unsupported-cluster-configuration-scenario-in-virtual-machine-manager/