The 'PreloadBaseDNs' and 'PreloadFilters' registry keys do not contain the same number of entries
Topic Last Modified: 2007-11-16
The Microsoft Exchange Server 2007 Management Pack for Operations Manager monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.
To learn more about this event, do one or more of the following:
Review the description of the event that includes the variables specific to your environment. From the Operator Console, select this alert, and then click the Properties tab.
Review all events that have been logged that meet the criteria of this Operations Manager alert. From the Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description.
Details
Product Name |
Exchange |
Product Version |
8.0 (Exchange Server 2007) |
Event ID |
2076 |
Event Source |
MSExchange ADAccess |
Alert Type |
Critical Error |
MOM Rule Path |
Microsoft Exchange Server/Exchange 2007/Common Components/Active Directory Access |
MOM Rule Name |
The 'PreloadBaseDNs' and 'PreloadFilters' registry keys do not contain the same number of entries. |
Explanation
This Error event indicates that the DSAccess search preload was configured in the Windows registry but the number of entries in the PreloadBaseDNs registry key does not match the number of entries in the PreloadFilters registry key. If you set appropriate values for the preload registry keys, you can enhance performance of the Exchange server and reduce load on the Active Directory® directory service.
A BaseDN is a starting point in the Active Directory hierarchy where any given search will start. The PreloadBaseDNs registry key contains multiple BaseDN entries. The PreloadFilters registry key specifies a search filter. The PreloadFilters registry key also contains multiple entries. Each entry in the PreloadBaseDNs registry key must match an entry in the PreloadFilters registry key.
User Action
To resolve this error, make sure that number of entries in the PreloadBaseDNs registry key equals the number of entries in the PreloadFilters registry key.
For more information, see Microsoft Knowledge Base article 250572, XCON: Preloading and the DSAccess Cache.
For More Information
To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.
To review Exchange 2007 event message articles that may not be represented by Exchange 2007 MOM alerts, see the Events and Errors Message Center.
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.