Move Hyper-V Clustered VM to new Cluster with different Virtual Switch Names.

Move-ClusteredVM.ps1

function Move-ClusteredVM {

    [CmdletBinding(DefaultParameterSetName = "__AllParameterSets")]
    [OutputType()]

    param (
        [Parameter(Mandatory = $true, ParameterSetName = "ByName", ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
        [String[]]
        $Name,

        [Parameter(Mandatory = $true, ParameterSetName = "ByVM", ValueFromPipeline = $true)]
        [Microsoft.HyperV.PowerShell.VirtualMachine[]]
        $VM,

        [Parameter()]
        [String]
        $DestinationHost,

        [Parameter(Mandatory = $true)]
        [String]
        $DestinationStoragePath,

        [Parameter(Mandatory = $true)]
        [String]
        $DestinationClusterName,

        [Parameter(Mandatory = $true)]
        [String]
        $SwitchName
    )

    begin {}

    process {
        if ($PSCmdlet.ParameterSetName -eq "ByName") {
            foreach ($nameValue in $Name) {
                $VM += Get-VM -Name $nameValue
            }
        }

        foreach ($vmValue in $VM) {
            # Remove the current VM Resource Group.
            Remove-ClusterGroup -VMId $vmValue.Id -RemoveResources -Force

            # Append the VM Name to the destination storage path if not provided.
            if (-not $DestinationStoragePath.EndsWith($vmValue.Name)) {
                $DestinationStoragePath = Join-Path -Path $DestinationStoragePath -ChildPath $vmValue.Name
            }

            # Find best host for VM placement if DestinationHost is not provided (simply put, place the VM on the host with the least ammount of VMs running)
            if (-not $PSBoundParameters.ContainsKey("DestinationHost")) {
                $DestinationHost = Get-CLusterGroup -Cluster $DestinationClusterName | Where-Object { $_.GroupType -eq "VirtualMachine" } | Group-Object -Property OwnerNode | Sort-Object Count | Select-Object -First 1 -ExpandProperty Name
            }

            # Generate a Compatability Report and correct the Virtual Switch Name for the new Hosts.
            $compatabilityReport = Compare-VM -VM $vmValue -DestinationHost $DestinationHost -DestinationStoragePath $DestinationStoragePath
            $compatabilityReport.VM.NetworkAdapters | ForEach-Object { Connect-VMNetworkAdapter -VMNetworkAdapter $_ -SwitchName $SwitchName }

            # If the VM has Snapshots, update the Virtual Switch connection.
            $vmSnapshot = Get-VMSnapshot -VM $vmValue
            if ($null -ne ($vmSnapshot)) {
                foreach ($vmSnapshotValue in $vmSnapshot) {
                    $vmSnapshotValue.NetworkAdapters | ForEach-Object { Connect-VMNetworkAdapter -VMNetworkAdapter $_ -SwitchName $SwitchName}
                }
            }

            # Move the VM to the new host.
            Move-VM -CompatibilityReport $compatabilityReport

            # Add the VM to the new Cluster.
            Add-ClusterVirtualMachineRole -VMName $vmValue.Name -Name ("SCVMM {0} Resources" -f $vmValue.Name) -Cluster $DestinationClusterName
        }
    }

    end {}
}