Clear-CMClientCache.ps1
|
<#
.SYNOPSIS Clear the cache content on SCCM clients. .DESCRIPTION Clear the cache content on SCCM clients using the COM object. .PARAMETER ComputerName Enter a computer name .PARAMETER CacheAgeinDays Enter a number in days of the last time cache was referenced. .EXAMPLE Clear-CMClientCache -ComputerName DESKTOP01 Clears all SCCM client cache content .EXAMPLE Clear-CMClientCache -ComputerName DESKTOP01,DESKETOP01 -CacheAgeinDays 30 Clears all SCCM client cache content that hasn't been referenced in 30 days. .NOTES General notes #> #requires -RunAsAdministrator function Clear-CMClientCache { [CmdletBinding(SupportsShouldProcess = $true)] param ( [string[]]$ComputerName = $env:COMPUTERNAME, [int]$CacheAgeinDays = 0 ) begin { function Clean-ClientCache { param ( [int]$CacheAgeinDays, [bool]$WhatIf ) $VerbosePreference = 'Continue' Write-Verbose "Beginning clearing of SCCM Cache older than $CacheAgeinDays days" $UIResourceMgr = New-Object -ComObject UIResource.UIResourceMgr $Cache = $UIResourceMgr.GetCacheInfo() $CacheElements = $Cache.GetCacheElements() | Where-Object -FilterScript {$_.LastReferenceTime -lt (Get-Date).AddDays( - $CacheAgeInDays)} if ($CacheElements) { if ($CacheElements.Count) { Write-Verbose -Message "Found $($CacheElements.Count) cache elements on $($env:COMPUTERNAME) continuing to clear the elements in the cache." } else { Write-Verbose -Message "Found a cache element on $($env:COMPUTERNAME) continuing to clear the elements in the cache." } foreach ($Element in $CacheElements) { if ($WhatIf) { Write-Verbose "What if: Deleting CacheElement with PackageID $($Element.ContentID) from $($Element.Location)" } else { Write-Verbose "Deleting CacheElement with PackageID $($Element.ContentID) from $($Element.Location)" $Cache.DeleteCacheElement($Element.CacheElementID) } } } else { Write-Verbose -Message "No cache elements found on $($env:COMPUTERNAME)" } } } process { foreach ($Computer in $ComputerName) { Write-Verbose -Message "Attempting to clear SCCM client cache on $Computer older than $CacheAgeinDays days" if ($PSBoundParameters.ContainsKey('WhatIf')) { Write-Verbose "WhatIf detected" $WhatIf=$true Invoke-Command -ComputerName $Computer -ScriptBlock ${function:Clean-ClientCache} -ArgumentList $CacheAgeinDays,$WhatIf } else { Invoke-Command -ComputerName $Computer -ScriptBlock ${function:Clean-ClientCache} -ArgumentList $CacheAgeinDays } } } end { } } |