Microsoft KB Archive/906757

= When you back up a large database in Exchange 2000 Enterprise Server, the backup operation fails =

Article ID: 906757

Article Last Modified on 10/26/2006

-

APPLIES TO


 * Microsoft Exchange 2000 Enterprise Server

-





SYMPTOMS
When you use NTBackup to back up a Microsoft Exchange store database in Microsoft Exchange 2000 Enterprise Server, the backup operation fails. This behavior occurs when the following conditions are true:
 * You have enabled ESE Zeroing on the database.
 * The database is large. For example, the database is about 100 GB.

For more information about how to enable ESE Zeroing on an information store database, click the following article number to view the article in the Microsoft Knowledge Base:

223161 Information on ESE Zeroing



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
You must install Microsoft Exchange 2000 Server Service Pack 3 (SP3) and the August 2004 Exchange 2000 Server post-Service Pack 3 update rollup before you install the hotfix.

For more information about how to obtain these software updates, click the following article number to view the article in the Microsoft Knowledge Base:

301378 How to obtain the latest Exchange 2000 Server service pack

Restart requirement
You do not have to restart the computer after you apply the hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
Even though Microsoft Exchange 2000 Enterprise Server supports databases that are larger than 100 GB, we recommend that you limit database sizes to 50 GB.

If you run mailbox stores that are larger than 50 GB, make sure that you perform online maintenance in the correct manner. Additionally, make sure that your hardware is appropriately matched with the service level agreement so that large databases are restored in the expected period of time. Otherwise, we recommend that you distribute mailboxes across multiple mailbox stores so that no single mailbox store is over 50 GB. For more information about limiting database sizes, visit the following Microsoft Web site:

http://www.microsoft.com/technet/prodtechnol/exchange/Analyzer/159212e8-2509-46c9-96f3-59703c2a5271.mspx

Additional query words: XADM

Keywords: kbhotfixserver kbqfe kbfix kbexchange2000presp4fix kbbug kbpubtypekc KB906757

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.