Some friends here on the Hyper-V team shared a PowerShell 2.0 script for changing the VM state:
# Change state of VM param( [string]$vmName = $(throw "Must supply a virtual machine name") [int]$newState = $(throw "Must specify a state to change to:`nEnabled: 2`nDisabled: 3`nReset: 10`nPaused: 32768`nSuspended: 32769`n" ) # Get the VM by name $vm = gwmi -namespace root\virtualization Msvm_ComputerSystem -filter "ElementName='$vmName'" # Attempt to change state $result = $vm.RequestStateChange($newState) if($result.ReturnValue -eq 4096){ # A Job was started, and can be tracked using its Msvm_Job instance $job = [wmi]$result.Job # Wait for job to finish while($job.jobstate -lt 7){$job.get()} # Return the Job's error code return $job.ErrorCode } # Otherwise, the method completed return $result.ReturnValue
# Change state of VM
param( [string]$vmName = $(throw "Must supply a virtual machine name") [int]$newState = $(throw "Must specify a state to change to:`nEnabled: 2`nDisabled: 3`nReset: 10`nPaused: 32768`nSuspended: 32769`n" )
# Get the VM by name $vm = gwmi -namespace root\virtualization Msvm_ComputerSystem -filter "ElementName='$vmName'"
# Attempt to change state $result = $vm.RequestStateChange($newState)
if($result.ReturnValue -eq 4096){ # A Job was started, and can be tracked using its Msvm_Job instance $job = [wmi]$result.Job # Wait for job to finish while($job.jobstate -lt 7){$job.get()} # Return the Job's error code return $job.ErrorCode } # Otherwise, the method completed return $result.ReturnValue
For more info on how to use PS cmdlets see: http://www.microsoft.com/technet/scriptcenter/topics/msh/cmdlets/index.mspx
See also James O’Neil’s New and improved PowerShell Library for Hyper-V. Now with more functions and... documentation!
For all 35 sample Hyper-V PS1 scripts in a zipfile, go to: Hyper-V PowerShell Example Scripts.zip-download