DOCUMENT:Q224991  20-MAY-2001  [exchange]
TITLE   :XFOR: DXA Does Not Start After Upgrading Windows NT to SP4
PRODUCT :Microsoft Exchange
PROD/VER:winnt:4.0,4.0 SP4,4.0 SP5,5.0,5.5
OPER/SYS:
KEYWORDS:exc4 exc5 exc55

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The information in this article applies to:

 - Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
 - the operating system: Microsoft Windows NT, versions 4.0 SP4, 4.0 SP5 
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SYMPTOMS
========

After you upgrade a computer running Microsoft Windows NT version 4.0 Service
Pack 3 that was running the Microsoft Exchange Directory Synchronization Service
(DXA) to Service Pack 4, the following errors appear in the Windows NT
Application Event Log, and the DXA does not start:

   Event ID: 249
   Source: MSExchangeDX
   Description: Error -1201 occurred while trying to create a new database.

   - and -

   Event ID: 172
   Source: ese97
   Description: MSExchangeDX ((276)) The database engine is initiating index
   cleanup of database 'd:\exchsrvr\DXADATA\XDIR.EDB' as a result of an NT
   version upgrade from 4.0.1381 SP3 to 4.0.1381 SP4.

   - and -

   Event ID: 177
   Source: ese97
   Description: MSExchangeDX ((276)) Database 'd:\exchsrvr\DXADATA\XDIR.EDB': The
   secondary index 'DisplayName_index' of table 'MapTable' is corrupt. Please
   defragment the database to rebuild the index.

CAUSE
=====

After you apply Windows NT version 4.0 Service Pack 4, you need to rebuild the
indexes of the DXA database to start the DXA, because the UNICODE sort order is
changed in Windows NT version 4.0 Service Pack 4. After you upgrade the Windows
NT version, the DXA doesn't rebuild the indexes of the DXA database
automatically when you start the DXA.

RESOLUTION
==========

If you defragment the DXA database, indexes are rebuilt, and the DXA starts
successfully.
For additional information about how to defragment an Exchange Server database,
click the article number below to view the article in the Microsoft Knowledge
Base:

   Q192185 XADM: How to Defragment with the ESEUTIL Utility (Eseutil.exe)

Additional query words:

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Keywords          : exc4 exc5 exc55 
Technology        : kbOSWinSearch kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 kbOSWinNTSearch kbOSWinNT400SP4 kbOSWinNT400SP5
Version           : winnt:4.0,4.0 SP4,4.0 SP5,5.0,5.5
Issue type        : kbprb

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