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112 lines
4.5 KiB
PowerShell

function Set-CBT {
<#
.NOTES
===========================================================================
Created by: Markus Kraus
Twitter: @VMarkus_K
Private Blog: mycloudrevolution.com
===========================================================================
Changelog:
2016.11 ver 1.0 Base Release
===========================================================================
External Code Sources:
http://wahlnetwork.com/2015/12/01/change-block-tracking-cbt-powercli/
===========================================================================
Tested Against Environment:
vSphere Version: 5.5 U2
PowerCLI Version: PowerCLI 6.3 R1
PowerShell Version: 4.0
OS Version: Windows Server 2012 R2
===========================================================================
Keywords vSphere, ESXi, VM, Storage, CBT, Backup
===========================================================================
.DESCRIPTION
This Function enables or disables CBT.
.Example
Get-VN TST* | Set-CBT -DisableCBT
.Example
Get-VN TST* | Set-CBT -EnableCBT
.PARAMETER DisableCBT
Disables CBT for any VMs found with it enabled
.PARAMETER EnableCBT
Enables CBT for any VMs found with it disabled
#Requires PS -Version 4.0
#Requires -Modules VMware.VimAutomation.Core, @{ModuleName="VMware.VimAutomation.Core";ModuleVersion="6.3.0.0"}
#>
[CmdletBinding()]
param(
[Parameter(Mandatory=$True, ValueFromPipeline=$True, Position=0, HelpMessage = "VMs to process")]
[ValidateNotNullorEmpty()]
[VMware.VimAutomation.ViCore.Impl.V1.Inventory.InventoryItemImpl[]] $myVMs,
[Parameter(Mandatory = $False,ValueFromPipeline=$False, Position = 1, HelpMessage = "Enables CBT for any VMs found with it disabled", ParameterSetName = "EnableCBT")]
[ValidateNotNullorEmpty()]
[Switch]$EnableCBT,
[Parameter(Mandatory = $False,ValueFromPipeline=$False, Position = 1, HelpMessage = "Disables CBT for any VMs found with it enabled", ParameterSetName = "DisableCBT")]
[ValidateNotNullorEmpty()]
[Switch]$DisableCBT
)
Process {
$vmconfigspec = New-Object -TypeName VMware.Vim.VirtualMachineConfigSpec
Write-Verbose -Message "Walking through given VMs"
foreach($myVM in $myVMs)
{
if ($DisableCBT -and $myVM.ExtensionData.Config.ChangeTrackingEnabled -eq $true -and $myVM.ExtensionData.Snapshot -eq $null)
{
try
{
Write-Verbose -Message "Reconfiguring $($myVM.name) to disable CBT" -Verbose
$vmconfigspec.ChangeTrackingEnabled = $false
$myVM.ExtensionData.ReconfigVM($vmconfigspec)
if ($myVM.PowerState -eq "PoweredOn" ) {
Write-Verbose -Message "Creating a snapshot on $($myVM.name) to clear CBT file" -Verbose
$SnapShot = New-Snapshot -VM $myVM -Name "CBT Cleanup"
Write-Verbose -Message "Removing snapshot on $($myVM.name)" -Verbose
$SnapShot| Remove-Snapshot -Confirm:$false
}
}
catch
{
throw $myVM
}
}
elseif ($EnableCBT -and $myVM.ExtensionData.Config.ChangeTrackingEnabled -eq $false -and $myVM.ExtensionData.Snapshot -eq $null)
{
Write-Verbose -Message "Reconfiguring $($myVM.name) to enable CBT" -Verbose
$vmconfigspec.ChangeTrackingEnabled = $true
$myVM.ExtensionData.ReconfigVM($vmconfigspec)
if ($myVM.PowerState -eq "PoweredOn" ) {
Write-Verbose -Message "Creating a snapshot on $($myVM.name) to Create CBT file" -Verbose
$SnapShot = New-Snapshot -VM $myVM -Name "CBT Cleanup"
Write-Verbose -Message "Removing snapshot on $($myVM.name)" -Verbose
$SnapShot | Remove-Snapshot -Confirm:$false
}
}
else
{
if ($myVM.ExtensionData.Snapshot -ne $null -and $EnableCBT)
{
Write-Warning -Message "Skipping $($myVM.name) - Snapshots found"
}
elseif ($myVM.ExtensionData.Snapshot -ne $null -and $DisableCBT)
{
Write-Warning -Message "Skipping $($myVM.name) - Snapshots found"
}
}
}
}
}