Microsoft KB Archive/246090

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SMS: Excessive LSASS CPU Usage with Multiple SMS Sites in the Same Domain

Article ID: 246090

Article Last Modified on 10/25/2006


  • Microsoft Systems Management Server 2.0 Standard Edition
  • Microsoft Systems Management Server 2.0 Service Pack 1

This article was previously published under Q246090


If multiple Systems Management Server (SMS) site servers share the same Microsoft Windows NT-based domain, high amounts of network usage may occur at the beginning of each hour, on the hour. The CPU usage on the primary domain controller may also peak on the hour (with high usage by the LSASS process).


This behavior occurs because Collection Evaluator on a primary site erroneously calls GetUserGroups a number of times during collection processing. Creating, deleting, or modifying a collection causes GetUserGroups to be called numerous times in quick succession (possibly up to 15 times).

If many SMS primary sites share the same domain and there is a lot of collection activity, the primary domain controller may experience peaks in processor activity while it is handling multiple GetUserGroups calls.


You can reduce the number of GetUserGroups calls that are sent to the domain controllers by extending the collection refresh times or by disabling collection refreshes altogether.


To resolve this problem, obtain the latest service pack for Systems Management Server version 2.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

236325 How to Obtain the Latest Systems Management Server 2.0 Service Pack


Microsoft has confirmed this to be a problem in Systems Management Server version 2.0 This problem was first corrected in Systems Management Server version 2.0 Service Pack 2..

Additional query words: prodsms colleval

Keywords: kbbug kbfix kbsms200sp2fix KB246090