Trying to recover ~450GB unallocated space from a VHDx total filesize. Thanks for taking a look at this issue:
- Hyper-V Server 2012.
- Dynamic VHDx (we'll call it disk2.vhdx) with a file size of 1.5TB out of a maximum 2TB, does not contain Operating System, no Shadow Copies enabled.
- On the VM with disk2.vhdx attached, I've shrunk the previously 1.5TB partition to be 1.05TB, freeing up about ~450GB of space now listed as unallocated in the VM.
- The filesize for the VHDx still lists 1.5TB, we need to recover that 450GB on the Hyper-V host as it's nearing capacity.
Steps I've Taken:
- Defragged every drive on the VM.
- Turned VM off, used GUI compact, no results on any of the disks.
- Used Powershell Optimize-VHD -mode full & quick, full resulted in a longer compact time but end result was no free'd space.
- Using the Hyper-V Disk Management Wizard, there is no Shrink option even after shrinking the partition from within the VM.
- We can simply mount the drive sucessfully with the following command (the disk is also working fine in the VM):
Attempting to Mount the VHD to pull info & manually resize it returns an error stating unable to 'get-disk' as there's no partition table or it's corrupt:
mount-vhd F:\disk2.vhdx -passthru | get-disk | get-partition | get-volume
Manual resize returns the same thing for both MinSize and SetBytes:
resize-vhd F:\disk2.vhdx -ToMinimumSize
Here's what get-vhd returns:
ComputerName : XXXX Path : F:\Disk2.vhdx VhdFormat : VHDX VhdType : Dynamic FileSize : 1572935303168 Size : 2147483648000 MinimumSize : LogicalSectorSize : 512 PhysicalSectorSize : 4096 BlockSize : 33554432 ParentPath : FragmentationPercentage : 1 Alignment : 1 Attached : False DiskNumber : IsDeleted : False Number :
As you can see there is no Minimum Size.
I would attempt to create a new fixed VHDx with the proper size and migrate the data over, but unfortunately we're very low on space so 1.5TB is an issue. Any ideas on how to recover the 450GB of unallocated space back from the VHDx file size to make it a 1TB drive?
I've also attempted to convert disk2.VHDx to a VHD and use the third party tool VHDResizer, but it eats up the remaining disk space before it can complete the transition to vhd. Could this work if it were a VHD? I could look into transferring the VHDx off of the server onto one with more space to complete the conversion and test VHDResizer, I have no experience with the tool so I'm unsure if it's worth the attempt.
Thanks, appreciate any and all ideas.