Script to Start All VMs on a Hyper-V Server?

Thu, 30 Oct 2008 19:08:00 Z

Need a script to start all the VMs on a server with the Hyper-V role enabled?

Tony Soper

Script to Start All VMs on a Hyper-V Server?

Thu, 30 Oct 2008 19:08:17 Z

' Script starts all VMs on a Hyper-V enabled server
' Cobbled together by Johnkel@Microsoft.com
'
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\virtualization")
Set vmcollecion = objWMIService.ExecQuery("SELECT * FROM Msvm_ComputerSystem",,48)

Wscript.Echo VbCrLF
Wscript.Echo "Name Description State "
Wscript.Echo "------------------------ ---------------------------------- -------------"

' loop through all instances in collection
For each vm in vmcollecion
' decode system state, based on codes identified via trial and error
VMStateCode = vm.EnabledState
Select Case VMStateCode
        Case 2 VMState = "Running"
         Case 3     VMState = "PowerOff"
         Case 4     VMState = "ShuttingDown"
        Case 10   VMState = "Reset"
        Case 32768 VMState = "Paused"
        Case 32770 VMState = "Starting"
  Case 32771 VMState = "SnapshotInProgress"
        Case 32772 VMState = "Migrating"
        Case 32773 VMState = "Saving"
        Case 32774 VMState = "Stopping"
        Case 32776 VMState = "Pausing"
        Case 32777 VMState = "Resuming"
        Case 32769 VMState = "Saved"
  Case Else VMState = "Unclassified (so far)"
End Select

' print out VM info state
Wscript.Echo VbCrLF
Wscript.Echo vm.ElementName & Space(25 - Len(vm.ElementName)) & _
vm.Description & Space(35 - Len(vm.Description)) & _
VMState & " (" & VMStateCode & ")"

' request state change if appropriate - the host should never be eligible
if VMState <> "Running" and vm.Description <> "Microsoft Hosting Computer System" Then
Wscript.Echo Space(25) & "Starting " & vm.ElementName

RequestReturn = vm.RequestStateChange(2)

  if RequestReturn = 4096 Then
   Wscript.Echo Space(25) & "Start request submitted"
  Else
   Wscript.Echo Space(25) & "Something goofy happened (" & RequestReturn & ")"
  End If
End If
Next
Wscript.Echo VbCrLF

Tony Soper

Script to Start All VMs on a Hyper-V Server?

Thu, 30 Oct 2008 19:11:49 Z

Wscript.Echo VbCrLF
Wscript.Echo "Name Description State "
Wscript.Echo "------------------------ ---------------------------------- -------------"

' print out VM info state
Wscript.Echo VbCrLF
Wscript.Echo vm.ElementName & Space(25 - Len(vm.ElementName)) & _
vm.Description & Space(35 - Len(vm.Description)) & _
VMState & " (" & VMStateCode & ")"

RequestReturn = vm.RequestStateChange(2)

Tony Soper