ConfigMgr 2007 Perf Threshold: Site Server Inbox ddm.box Backlog > 10,000 over 3 hours Monitor

  • ID:  SMSv4_Perf_Threshold__Site_Server_Inbox_ddm.box_Backlog__10000_over_3_hours_19_Rule.AdvancedAlertCriteriaMonitor
  • Description:   
  • Target:  ConfigMgr Server
  • Enabled:  Yes

Operational States

Name State Description
AlertLevelSuccess Success  
AlertLevelWarning Warning  
AlertLevelError Error  

Overridable Parameters

Parameter Name Default Value Description Override
ErrorThreshold 10000  
WarningThreshold 5000  

Alert Details

Monitor State Message Priority Severity Auto Resolution
  (Warning) ConfigMgr 2007 Perf Threshold: Site Server Inbox ddm.box Backlog > 10,000 over 3 hours Medium Match Monitor Health Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

The total number of files in Data Discovery Manager's ddm.box inbox on the site server has exceeded the standard operational threshold.

This folder temporarily stores .ddr files after a client or server agent generates a discovery record.

This condition will increase unless it is resolved. If the file count keeps going beyond the threshold, discovered information will not be reflected in the Configuration Manager site database in a timely manner, and collections and reports may not accurately represent the devices and users on the network.

Causes

The total number of files can exceed the threshold because:

  • The SMS Executive service is stopped or not responding on the site server.

  • Discovery Data Manager could be processing changes to site boundaries or the parent site, or it could be sending inventory details to a new parent site. These changes take priority over normal DDR processing, which is suspended until they are processed.

  • The site server DDR processing rate is slower than the incoming rate of DDRs.

  • The site server has insufficient resources such as CPU, memory, or disk space.

  • The Configuration Manager site database has no more space.

  • A large number of clients has recently been discovered.

  • The site server may have lost connectivity with the Configuration Manager site database server.

  • Too many Configuration Manager 2007 sites may be sharing a single domain and or each site has Windows and Active Directory Discovery turned on.

Resolutions

To resolve this issue and lower the number of DDR files:

  • Verify that the threshold for this alert is not too low and is beyond the standard operating threshold for this specific Configuration Manager 2007 site.

  • Verify that the SMS Executive service is running on the site server. If it is stopped or not responding, restart the service.

  • Verify that the Configuration Manager site database is performing properly.

  • Determine whether the increased load is due to an infrequent influx of new data discovery records, or whether the DDR load remains relatively constant. If the load is constant, update the Configuration Manager infrastructure to achieve zero processing backlogs. If the load is due to a large number of newly discovered client machines, the issue may resolve itself if there are sufficient resources to process pending DDRs in addition to the standard DDR load.

  • Verify that the Configuration Manager site database has sufficient space. If the database is set to autogrow, verify that there is sufficient disk space for the database to expand.

  • Plan the type and frequency of your discovery methods carefully. Conduct performance testing to verify the infrastructure can accommodate the discovery load. Adjust the frequency of discovery to allow for longer interval for DDRs to be processed.

  • Modify the discovery configuration to discover fewer resources.

  • Verify that the site server can connect to the Configuration Manager site database server.

  • Verify that duplicate discovery is not happening for site within the same domain.

  • Examine the status messages for the SMS Discovery Data Manager (DDM) for possible problems.

  • Examine the Ddm.log file in the Configuration Manager Logs folder for errors or additional information.

External References

For more information about server sizing, see Planning and Deploying the Server Infrastructure for Configuration Manager 2007 at the Configuration Manager Product Documentation Web page.

For information about Configuration Manager Backup, see Planning for Backup and Recovery at the Configuration Manager Documentation Library Web page.

For more information about inbox folders and how they are used in Configuration Manager, see the “A description of inbox folders and how they are used in Configuration Manager” Web page (http://go.microsoft.com/fwlink/?LinkId=99539).

For more assistance, see a list of additional support options in the support section of Configuration Manager Web site at Support for Configuration Manager.

See Also for System Center Configuration Manager Management Pack


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