Hyper-V - How to compress a virtual disk with a dynamic size
To support me, you can subscribe to the channel, share and like the videos, disable your ad blocker or make a donation. Thank you!
Hello, in this video I present how to compact a VHDX to dynamic size in Hyper-V in graphical or command line and also why sometimes it doesn’t give any result.
Code Powershell pour compacter un VHDX en taille dynamique
# VHDX location.$vhd = "F:\vm\2019-4.vhdx"# Read-only mount required for compactionMount-VHD $vhd -ReadOnly# Volume compressionOptimize-VHD $vhd -Mode full# Unmount the volumeDismount-VHD $vhd
# If you do not recover any space, optimise the volume using the following options# Directly from the virtual machine to the desired volumeOptimize-Volume -DriveLetter C -Retrim -SlabConsolidate# Or by mounting the disk locally# Retrieve information about the disk volumes$Mount = Mount-VHD $vhd -Passthru | Get-Disk | Get-Partition | Get-Volume# I filter to get only the system volume$Volume = $Mount.Where({$_.size -gt 1gb }).path
# OptimisationOptimize-Volume -path $Volume -Retrim -SlabConsolidate# Unmount the volumeDismount-VHD $vhd
# Restart the compaction operation# Read-only mount required for compaction$Mount = Mount-VHD $vhd -ReadOnly# Compact the volumeOptimize-VHD $vhd -Mode full# Unmount the volumeDismount-VHD $vhdVideo : Hyper-V - How to compress a virtual disk with a dynamic size
Related links
Hyper-V - How to compress a virtual disk with a dynamic size
In this video, I show you how to compress a VHDX with a dynamic size in Hyper-V using graphics or the command line, and also explain why this sometimes doesn't workPowershell - Hyper-V - Give a custom name to a virtual network adapter
Hyper-V defaults to naming virtual machine NICs as network adapters. This can make it difficult to identify their usage, but this problem can be solved with Powershell which allows you to change the name of virtual network adapters.PowerShell - Hyper-V - Adding comments to a virtual machine
To keep track of changes to virtual machines under Hyper-V, it may be useful to use the comments function and add any information you think might be usefulPowershell - Hyper-V - Managing virtual machine configuration versions
How to update the configuration version of a virtual machine so that it can use the new features available on your new Hyper-VPowershell - Create a virtual machine for Windows 11 with Hyper-V
Here's how to create a virtual machine in Hyper-V ready to host a Windows 11 using Hyper-VHow to join an Active Directory domain with PowerShell DSC
Joining an Active Directory domain with PowerShell DSC
Follow me on
Support me
Last content
Powershell and the Left Hand Side
Powershell - Managing disks, partitions and volumes
Powershell - Managing System Restore Points in Windows
Powershell - Playing with the Windows clipboard
Powershell - Changing the state of a computer (sleep, hibernate, shutdown, restart)
Powershell - Compress-Archive and Expand-Archive to create and extract ZIP archives
Powershell - Export-Csv versus Export-Clixml
Powershell - Overview of Where-Object basic syntax and its limitations
Powershell - Hyper-V - Give a custom name to a virtual network adapter