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Difference between revisions of "Script Extracts and Examples (PowerCLI)"
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Script Extracts and Examples (PowerCLI) (view source)
Revision as of 14:46, 19 January 2011
, 14:46, 19 January 2011→Virtual Machine: Added "Enable Change Block Tracking"
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</source> | |||
==== Enable Change Block Tracking ==== | |||
This script enables CBT for all VM's managed by the vCentre its run on. It runs through all VM’s managed by the VC and determines which can be changed, then run through and changes them. | |||
Based on the work by ICT-Freak found at http://ict-freak.nl/2009/12/14/powercli-enable-changed-block-tracking/ | |||
<source lang="Powershell"> | |||
$log = "VM-EnableCBT.log" | |||
# ===================================================================================================== | |||
# Functions... | |||
function Log ($text) { | |||
[int]$duration = (New-TimeSpan $start (Get-Date)).TotalSeconds | |||
Write-Host "$duration secs | $text" | |||
} | |||
Function EnableChangeTracking{ | |||
param($vmObj) | |||
$vmView = Get-View -VIObject $vmObj | |||
Log ($vmObj.Name + " - Reconfiguring VM for CBT...") | |||
$vmConfigSpec = New-Object VMware.Vim.VirtualMachineConfigSpec | |||
$vmConfigSpec.ChangeTrackingEnabled = $true | |||
$task = $vmView.ReconfigVM_Task($vmConfigSpec) | |||
Wait-Task -Task (Get-VIObjectByVIView -MORef $task) -ErrorAction "SilentlyContinue" | |||
Sleep 1 | |||
Log ($vmObj.Name + " - Creating temp snapshot...") | |||
$snap = New-Snapshot -Name "Temp snapshot to apply CBT" -VM $vm | |||
Sleep 1 | |||
Log ($vmObj.Name + " - Removing temp snapshot...") | |||
Remove-Snapshot -Snapshot $snap -Confirm:$false | |||
Log ($vmObj.Name + " - Completed") | |||
} | |||
# ====================================================================================================== | |||
# The actual script... | |||
$start = Get-Date | |||
Start-Transcript -Path $log | |||
Log "Started script run at $start" | |||
$VMsToDo = @() | |||
$VMs = Get-VM | Sort -Property Name | |||
foreach ($vm in $VMs) { | |||
if (!(($vm.ExtensionData.Config.Extraconfig |?{$_.Key -eq "ctkEnabled"}).Value) -and $vm.Version.ToString() -eq "v7") { | |||
$VMsToDo += $vm | |||
Log ($vm.Name + " - Added to ToDo list") | |||
} else { | |||
if ((($vm.ExtensionData.Config.Extraconfig |?{$_.Key -eq "ctkEnabled"}).Value)) { | |||
Log ($vm.Name + " - CBT already enabled") | |||
} elseif ($vm.Version.ToString() -ne "v7") { | |||
Log ($vm.Name + " - Not v7, VM hardware version needs to be upgraded !!!") | |||
} | |||
} | |||
} | |||
Log ("Found " + $VMsToDo.Count + " to enable") | |||
foreach ($vm in $VMsToDo) { | |||
EnableChangeTracking $vm | |||
} | |||
Log("All completed") | |||
Stop-Transcript | |||
</source> | </source> | ||