"Unsupported cluster configuration" VMM




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

https://docs.microsoft.com/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/




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