I recently did some house keeping in our OpsMgr environment, cleaning up old and unused Management Packs, and to easily identify potential unused Management Packs I of course turned to PowerShell!
This script can walk through the management packs and get the number of instances for each class. If there is no instances of a class it is very likely that it is not used. After running this script you will end up with a list of potential unused classes, you can now check each management pack for it’s content and see if there is other classes in it that is in use.
################################################################
# Author: Andreas Sobczyk, CloudMechanic.net
#
# Get Empty classes from Management Packs
################################################################
## Get all management packs starting with Contoso.
$MPs = Get-SCOMManagementPack -name Contoso*
## For each MP, For each Class, count classinstances.
$Overview = @()
Foreach($MP in $MPs){
$Classes = $mp.GetClasses()
foreach($Class in $Classes){
$ClassInstance = $null
$ClassInstance = Get-SCOMClassInstance -Class $class
## If you want you can change the number of class instances to sort on.
if($ClassInstance.Count -le 0){
$Overview += $Class
}
}
}
$Overview | Format-Table Name,Displayname,ManagementpackName
CloudMechanic.net 