I was asked about getting more information about all the VHDs in a SCVMM environment (you now how you are). It is actually easy to do this, so i created a function that uses the SCVMM PowerShell module to grab all data and does a calculation on the expansion rate in percent for all disks, it pretty much gives you this:

Result.

The result will be that you now know where they are, sizes, expansion, type, parents, and some more info as well, and if you know, you can act.

You can grab the module from GitHub: https://github.com/DeploymentBunny/Files/tree/master/Tools/Get-VIASCVMMDiskInfo

/mike