blog-ADSystemDiscovery.ps1

#region AD System Discovery

#Set the System Discovery
$Schedule = New-CMSchedule -Start "2014/02/13 20:20:00" -RecurInterval minutes -RecurCount 10
Set-CMDiscoveryMethod -SiteCode DEX -ActiveDirectorySystemDiscovery -Enabled $true  -EnableFilteringExpiredLogon $true -TimeSinceLastLogonDays 90 -EnableFilteringExpiredPassword $true -TimeSinceLastPasswordUpdateDays 90 -PollingSchedule $Schedule

#To set the AD Containers 
$Sysdiscovery = get-ciminstance -classname SMS_SCI_Component -filter 'componentname ="sms_ad_system_discovery_agent"'
$ADContainerProp =$Sysdiscovery.PropLists | where {$_.PropertyListName -eq "AD Containers" }
$ADContainerProp.Values = "LDAP://CN=System,DC=Dexter,DC=Com",1,1 # Ldap path of the Container, Recursive search, Discover objects within groups

#set the changes back to the CIM Instance
Get-CimInstance -classname SMS_SCI_Component -filter 'componentname ="sms_ad_system_discovery_agent"' | Set-CimInstance -Property @{PropLists=$Sysdiscovery.PropLists}

#need to restart the Service
(Get-Service SMS_SITE_COMPONENT_MANAGER -ComputerName dexsccm).stop()

Start-Sleep -Seconds 10

(Get-Service SMS_SITE_COMPONENT_MANAGER -ComputerName dexsccm).start()

#endregion AD System Discovery