Since the Scheduled Tasks in vCenter ain’t exportable, I went ahead and wrote a rather simple script, which lets me do this in Windows own Task Scheduler. What this script does, is initiate a graceful shutdown and if the VM isn’t shutdown within 60 seconds (12 * 5 seconds) it simply powers the VM off and immediately after that powers it back on.
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; html-script: false ]param( [string] $vCenter, [string] $VMname ) # Add the VI-Snapin if it isn't loaded already if ( (Get-PSSnapin -Name "VMware.VimAutomation.Core" -ErrorAction SilentlyContinue) -eq $null ) { Add-PSSnapin -Name "VMware.VimAutomation.Core" } If ( !($vCenter) -or !($VMname) ) { Write-Host Write-Host "vm-reboot: <vcenter-server> <VMname>" Write-Host Write-Host " <vcenter-server> - DNS name of your vCenter server." Write-Host " <VMname> - Display name of the VM in this vCenter server." Write-Host exit 1 } Connect-VIServer -Server $vCenter $VM = Get-VM $VMname # First, try shutting down the virtual machine gracefully Write-Host "Stopping VM $( $VM )" Write-Host " - Graceful shutdown" Shutdown-VMGuest -VM $VM -Confirm:$false $VM = Get-VM $VMname $i = 0 While ($VM.PowerState -ne "PoweredOff") { # If that doesn't work, break out the hammer and just kill it if ( $i -gt 12 ) { Write-Host " - Forced shutdown" Stop-VM -VM $VMname -Confirm:$false } Start-Sleep -Seconds 5 $VM = Get-VM $VMname $i++ } If ($VM.PowerState -eq "PoweredOff") { Write-Host "Starting VM $( $VM )" Start-VM -VM $VM -Confirm:$false >$NULL } Disconnect-VIServer -server $vCenter -Confirm:$false |
Before this implementation in PowerCLI, I needed three tasks for each VM that was to be scheduled. And when migrating vCenters (and I usually do an empty install) vCenter’s scheduled tasks are not exportable, thus you need to re-create the tasks on the new vCenter by yourself again, which for more than four virtual machines is really a pain in the ass …
Update: well, found an error that caused shit not to work … Basically Stop-VM also needs the object for $VMname, otherwise the whole point of waiting for the VM to be stopped is kinda moot (seeing as Stop-VM never stops obsessing about not having a Get-VM object or a VM name to work with).
