If your OpsMgr environment has a complex group structure with a huge amount of groups and subgroups, it’s going to be rather difficult to determine a group membership of the particular computer. Here is a small powershell script that allows you to find out a computer’s membership very quickly.

Usage is clear, just pass a computer FQDN as a parameter.

>C:\GetGroupsThatContainComputer.ps1 <computerFQDN>

like >C:\GetGroupsThatContainComputer.ps1 hydra.contoso.com

As result you will get a list of all groups that contain computer hydra.contoso.com

Here is full source code of GetGroupsThatContainComputer.ps1 file:

param($computerFQDN)

function GetGroupNames($computerFQDN)
{
$containmentRel = Get-RelationshipClass -name:'Microsoft.SystemCenter.InstanceGroupContainsEntities'

$computerClass = Get-MonitoringClass -name:"Microsoft.Windows.Computer"

$criteria = [string]::Format("PrincipalName = '{0}'",$computerFQDN)

$computer = Get-MonitoringObject -monitoringClass:$computerClass -criteria:$criteria

$relatedObjects = $computer.GetMonitoringRelationshipObjectsWhereTarget($containmentRel,[Microsoft.EnterpriseManagement.Configuration.DerivedClassTraversalDepth]::Recursive,[Microsoft.EnterpriseManagement.Common.TraversalDepth]::Recursive)

foreach($group in $relatedObjects)
{
$group.SourceMonitoringObject.DisplayName
}

}

GetGroupNames $computerFQDN

Enjoy!

This posting is provided AS IS with no warranties. Use it at your own risk.