Migrate folder structure from old to new vSphere vCenter

migrate-vm.ps1

Import-Module VMware.PowerCLI

$global:DefaultVIServers | Disconnect-VIServer -Confirm:$false

$srcVc = "SRC-VCENTER-FQDN"
$dstVc = "DST-VCENTER-FQDN"

Connect-VIServer $srcVc -User xxx -Password xxxxxx
Connect-VIServer $dstVc -User xxx -Password xxxxxx

$sourceDatacenterName = "SRC-DS-NAME"
$targetDatacenterName = "DST-DS-NAME"

$moveVms = $true # Should VMs in target vCenter be moved to folders by Name best effort


# Creates the folder and moves the VMs
Function Create-Folder($f, $t, $targetRoot) {
	$from_name = $f.name -replace "\[", "``["
	Write-Host "== Create-Folder" $t.name "/" $from_name
	try {
		$targetFolder = New-Folder -Name $f.name -Location $t -ErrorAction Stop
	}
	catch {
		$targetFolder = Get-Folder -Name $from_name -Location $t -NoRecursion -ErrorAction Stop
	}
	
	if ($targetFolder -eq $null) {
		throw "Error creating folder" + $t.name + "/" + $f.name
	}
	
	if ($moveVms) {
		#Write-Host "Moving VMs"
		$VMs = Get-VM -Location $f -NoRecursion
		
		foreach ($vm in $VMs) {
			Try {
				$vm_name = $vm.name -replace "\[", "``["
				$targetVM = Get-VM -Name $vm_name -Location $targetRoot -NoRecursion -ErrorAction Stop
				if ($targetVM.Length -gt 1) {
					Write-Host "Multiple VMs Error"
					throw("Multiple VMs found")
				}
				else {
					$moveJob = Move-VM $targetVM -InventoryLocation $targetFolder
					Write-Host "== Move VM:     " $t.name "/" $from_name  "<<" $vm.name
				}
			}
			Catch {
				#Write-Host "Skip VM:" $vm.name
			}
		}
	}
	Create-SubFolders -f $f -t $targetFolder -targetRoot $targetRoot
}

# Cycles through subfolders and creates them
Function Create-SubFolders($f, $t, $targetRoot) {
	$subFolders = Get-Folder -Location $f
	
	foreach ($folder in $subFolders) {
		Create-Folder -f $folder -t $t -targetRoot $targetRoot
	}
}


# MAIN
$sourceLocation = Get-folder -Server $srcVc -Name vm | Where-Object { $_.Parent -match "^$($sourceDatacenterName)$" }
$targetLocation = Get-folder -Server $dstVc -Name vm | Where-Object { $_.Parent -match "^$($targetDatacenterName)$" }

$sourceRootFolders = Get-Folder -Server $srcVc | Where-Object { $_.Parent -eq $sourceLocation -and $_.Type -eq "VM" }

# Goes through all root folders in sourceDatacenter
foreach ($folder in $sourceRootFolders) {
	Create-Folder -f $folder -t $targetLocation -targetRoot $targetLocation
}