Powershell, Foreach mit Ausnahme - Hyper-V Backup

$VM_Service = get-wmiobject -namespace root\virtualization Msvm_VirtualSystemManagementService

$ListofVMs = get-wmiobject -namespace root\virtualization Msvm_ComputerSystem -filter  "ElementName <> Name"    

 

foreach ($VM in [array] $ListOfVMs)

{

                    $VMReturnState = $VM.EnabledState

                    $VMName = $VM.ElementName

 

                    if (($VM.EnabledState -eq 2) -or ($VM.EnabledState -eq 32768) -or ($VM.EnabledState -eq 32770))

                    {

                                         $VM.RequestStateChange(32769)

                                         echo "Saving the state of $VMName"  

                    }

 

                    while (!($VM.EnabledState -eq 32769) -and !($VM.EnabledState -eq 3))

                    {

                                         Start-Sleep(1)

                                         $VM = get-wmiobject -namespace root\virtualization -Query "Select * From Msvm_ComputerSystem Where ElementName='$VMName'"  

                    }

 

 

                    if ([IO.Directory]::Exists("$dest\TmpDir\$VMName"))  

                    {

                                         [IO.Directory]::Delete("$dest\TmpDir\$VMName", $True)  

                    }

 

                    echo "Exporting the VM"  

                    $status = $VM_Service.ExportVirtualSystem($VM.__PATH, $True, "$dest\TmpDir")  

                                        

                    if ($status.ReturnValue -eq 4096)

                    {

                                         $job = [Wmi]$status.Job                    

                   

                                         while (!($job.PercentComplete -eq 100) -and ($job.ErrorCode -eq 0))

                                         {

                                                             Start-Sleep(5)

                                                             $job = [Wmi]$status.Job                    

                                                             echo $job.PercentComplete

                                         }

                    }

 

 

                    ##                Store the files on in a temp directory before moving them to their location and then remove the old files.

 

                    if ([IO.Directory]::Exists("$dest\$VMName"))  

                    {

                                         [IO.Directory]::Move("$dest\$VMName", "$dest\$VMName-OldTmpDir")  

                                         [IO.Directory]::Move("$dest\TmpDir\$VMName", "$dest\$VMName")  

                                         [IO.Directory]::Delete("$dest\$VMName-OldTmpDir", $True)  

                    }

                    else

                    {

                                         [IO.Directory]::Move("$dest\TmpDir\$VMName", "$dest\$VMName")  

                    }

                   

                    echo "Done with $VMName"  

                    $VM.RequestStateChange($VMReturnState)

}