Recently during a ConfigMgr upgrade my SMS_MP_CONTROL_MANAGER was littered with the following warnings:
MP needs to reload the hardware inventory class mapping table when processing Hardware inventory. The MP hardware inventory manager cannot find a WMI class definition in the mapping table when processing a report. This should only happen if new definitions beyond those known to the SMS are added to the collected classes.
Possible cause: Inconsistent way the new definitions have been introduced.
Solution: Check that the mapping tables contain the information consistent with the hardware definition tables and that the definitions have been propagated properly.
Possible cause: Corruption of the data base.
Solution: Check the consistency of the data base.
After a little research I found that this is usually caused by clients that have a version of SMS.Def.mof that is out of sync from the version found on the site server. These messages should only happen once per client as they pull down and update the version of their SMS.Def.mof file. In my case I was upgrading from SMS 2003 to ConfigMgr and as more and more clients updated their SMS_Def.mof file these messages started to reside. If you continue to get these messages it would be a good idea to engage Microsoft CSS.
