How to enable logging for Directory Service to Metabase replication (303638)

Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SUMMARY

To troubleshoot Directory Service to Metabase replication, you may have to enable logging for the Directory Service to Metabase replication process. By default, this logging is disabled. This article describes how to edit the registry to enable logging for the Directory Service to Metabase replication process.

As of Exchange 2000 Service Pack 2 (SP2) or later, you do not have to add this object in the registry. The key MSEXCHANGEMU already exists under the following registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services

Additionally, on the Diagnostic Logging tab of the Server object in Exchange System Manager there now exists an object named MSEXCHANGEMU. When you increase the logging level to Maximum, the value of the registry setting is set to 5. If you have Exchange 2000 SP1 or earlier, you must still manually add the registry keys by using the procedure that is in the "More Information" section of this article.

MORE INFORMATION

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To enable logging for the Directory Service to Metabase replication process:

Start Registry Editor (Regedt32.exe).
Locate and click the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
On the Edit menu, click Add Key, and then add the following registry key name:
MSExchangeMU
NOTE: After you add this key, leave the Class box blank, and then click OK.
Click the key that you just created, click Add Key on the Edit menu, and then add the following registry key name:
Diagnostics
NOTE: After you add this key, leave the Class box blank, and then click OK.
Click the key that you just created, click Add Value on the Edit menu, and then add the following value name:
Value name: 1 General
Data type: REG_DWORD (for example)
Radix: Hexadecimal
Value data: 5
Quit Registry Editor.

By default, this registry key does not exist. After you create it, you must restart the System Attendant service. After you create this key, you can change logging levels dynamically. To do so, start Exchange System Manager, open Server properties, and then click the Diagnostics Logging tab.

For additional information about the Directory Service to Metabase replication process, click the following article number to view the article in the Microsoft Knowledge Base:

240105 General information on Directory Service/Metabase Synchronization in Exchange 2000 Server