Last year I wrote a script that would allow you to specify a virtual machine, and the script would:<\/p>\n
In my tests, the script had some issues. But that was nearly a year ago and it was on WS2012 in my lab. The script remained untouched until yesterday. I was chatting with my fellow Hyper-V MVP, Didier Van Hoye<\/a> (aka @workinghardinit<\/a>). He told me he was in the process of migrating VMs from an old W2008 R2 cluster to WS2012 and was going to be converting VHD files. Aha! This might be a time for a solution to speed up the process.<\/p>\n I sent the script over to Didier to have a look-see. Would it work. Well, Didier ran a series of tests this morning with guest OSs including W2003 R2 and WS2012. The tests ran flawlessly.<\/p>\n So \u2026 here is the script. FYI there are few things to note:<\/p>\n CREDIT: A big thank you to Didier Van Hoye<\/a> (aka @workinghardinit<\/a>) for checking my work.<\/p>\n #—-<\/p>\n [CmdletBinding ()] #Disable error reporting – comment out the following line if you need to troubleshoot the script cls <\/p>\n $VM = Get-VM $VMName if ($VM.VMid -ne $NULL) #Get the disks in the VM if ($AllVHD -eq $NULL) foreach ($VHD in $AllVHD) [string]$ControllerType = $VHD.ControllerType Write-Host "Converting: " $VHDFile "to" $VHDXFile #Reconfigure the Physical Sector Size of the VHDX file to 4 K #Remove the old VHD #Danger Will Robinson – we are going to delete the original VHD – we hope you have a tested VM backup! if ($VMStatus -eq "Running") } Write-Host "Processing of $VMName has completed"<\/p>\n Last year I wrote a script that would allow you to specify a virtual machine, and the script would: Shut down the VM if running Seek out any VHD files attached to any of the VM\u2019s controllers Create VHDX files from those VHD files Replace the VHD files by attaching the VHDX files to the … Continue reading “Script To Convert Hyper-V Virtual Machine From VHD To VHDX”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[20],"tags":[181,87,189,99,195,118,120],"class_list":["post-16007","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-powershell","tag-scripting","tag-storage","tag-virtualisation","tag-windows-server-2012","tag-windows-server-2012-r2"],"aioseo_notices":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/16007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16007"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/16007\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
Param (
[Parameter(Mandatory=$True)]
[string]$VMName
) <\/p>\n
$ErrorActionPreference = "SilentlyContinue" <\/p>\n
$VMStatus = $VM.State <\/p>\n
{
if ($VMStatus -eq "Running")
{
#Shut down the VM if it is running
Write-Host "Shutting down" $VMName
Stop-VM $VMName
} <\/p>\n
$AllVHD = Get-VMHardDiskDrive $VMName <\/p>\n
{
Write-Host "There are no virtual hard disks to convert"
Exit
} <\/p>\n
{
#Get the VM path and create a VHDX file path
[string]$VHDFile = Get-Item $VHD.Path
$VHDFormat = (Get-VHD $VHDFile).VhdFormat
if ($VHDFormat -eq "VHD")
{
[string]$VHDXFile = $VHDFile + "x" <\/p>\n
[string]$ControllerNumber = $VHD.ControllerNumber
[string]$ControllerLocation = $VHD.ControllerLocation <\/p>\n
Convert-VHD \u2013Path $VHDFile \u2013DestinationPath $VHDXFile
Sleep 10 <\/p>\n
Set-VHD -Path $VHDXFile -PhysicalSectorSizeBytes 4096
Sleep 10 <\/p>\n
Write-Host "Removing $VHDFile from $VMName"
Remove-VMHardDiskDrive $VHD
Sleep 10
#Replace the VHD with the VHDX
Write-Host "Adding $VHDXFile to $VMName"
Add-VMHardDiskDrive -VMName $VMName -Path $VHDXFile -ControllerType $ControllerType -ControllerNumber $ControllerNumber -ControllerLocation $ControllerLocation <\/p>\n
Write-Host "Deleting $VHDFile"
Remove-Item $VHDFile -Force
}
else
{
Write-Host "$VHDFile is already a VHDX file: skipping"
}
} <\/p>\n
{
#Restart the VM if it was running before the conversion
Write-Host "Starting" $VMName
Start-VM $VMName
#Wait for 10 seconds
Write-Host "Waiting for 10 seconds to verify the virtual machine …"
Sleep 10
$VMStatus = $VM.State
if ($VMStatus -ne "Running")
{
#Something went wrong
Write-Host "$VMName could not reboot – please restore the VM from backup"
}
} <\/p>\n
else
{
Write-Host $VMName "does not exist on this host"
Exit
} <\/p>\n