Reinstalling Lenovo Hardware PRO Pack
If you recently removed the management packs from the Operations Manager Console and you want to reinstall Lenovo Hardware PRO Pack, wait at least 30 minutes for the settings to propagate to the Operations Manager database before reinstalling the application. If you do not wait for the removal of the management pack to register, reinstalling can result in managed clients that are not listed in the Operations Manager Console.
For more information about this known Microsoft System Center Operations Manager limitation, refer to Discovery information is missing after you delete and then reimport a management pack in Microsoft System Center Operations Manager 2007 webpage.
When you delete the management packs from the console, you detach Lenovo Hardware PRO Pack from the Operations Manager server. To add the management pack back into the console view, you must import Lenovo Hardware PRO Pack into Microsoft System Center Operations Manager.