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ahinterl
Brass Contributor
Oct 20, 2025

Map vmdk to guest volume

I have a Hyper-V cluster and want PowerShell to give me a list of what vmdk file is assigned to which volume mount point in the virtual machine OS (Windows). Example:

vmdk file                                                                  mount point
-------------------------------------------------------------------------------------------
C:\ClusterStorage\Data1\VM\ComputerA\Virtual Hard Disks\OSDisk.vhdx        C:\
C:\ClusterStorage\Data1\VM\ComputerA\Virtual Hard Disks\MainMount.vhdx     M:\
C:\ClusterStorage\Data1\VM\ComputerA\Virtual Hard Disks\Temp.vhdx          M:\Temp

The vmdks for C: and M: are mapped to drives in the guest, whereas Temp.vhdx is mounted in a folder under M:\.

The main challenge for me is actually to find the correct elements that allow me to link a VMDK to a disk inside the virtual machine OS. The ones I found so far are: Get-Disk gives me numbers for adapter, port, target, and LUN, and Get-VMHardDiskDrive returns numbers for controller and location, which I guess link to target and LUN. But I'm pretty unsure whether it's safe to use these properties...

Get-Disk returns a path, and I think I can use this to map the result of a win32_mountpoint CIM query to it to get the volume mount point...

Does anyone have some valuable information for me on this?

 

 

 

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