Live Migrating VM’s with Powershell from VMM to VMM with different Logical Switch
Another quick & dirty fast publish:
When live migrating a VM from one Hyper-V to another Hyper-V when the virtual switch names are different, using the GUI you get a prompt to select the swtich on the target host. Using Powershell “Move-VM” fails and there is no option to specify the target switch name.
A way around this is using the Compare-VM cmdlet. Below is part of a quick and dirty script that achieved my goal.
Predefined variables: $VMName, $Switch & $TargetHost
$VMReport = Compare-VM -Name $VMName –DestinationHost $TargetHost
$VMReport.Incompatibilities | ?{$\_.MessageID -eq 33012} | %{Connect-VMNetworkAdapter $\_.source -SwitchName $Switch}
Move-VM $VMReport -AsJob
This will live migrate the VM defined to the target host and change the virtual switch
Edit: 3/6/2015
Do the above with a Out-GridView
$targethost = Read-Host "Name of target Hyper-V Host"
$VMS = Get-VM | Out-Gridview -Title "Running VM’s" -Passthru
ForEach ($VM in $VMS)
{
$VMReport = Compare-VM -Name $VM.Name -DestinationHost $targethost
$VMReport.Incompatibilities | ?{$\_.MessageID -eq 33012} | %{Connect-VMNetworkAdapter $\_.source -SwitchName "LSwitch-Hosts"}
Move-VM $VMReport -AsJob
}
Cheers’
Dan
