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Microsoft KB Archive/924204

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Knowledge Base


Exchange Server 2003: Unable to back up Exchange databases with Event ID 904

Article ID: 924204

Article Last Modified on 10/25/2007



APPLIES TO

  • Microsoft Exchange Server 2003 Enterprise Edition
  • Microsoft Exchange Server 2003 Standard Edition



Source: Microsoft Support

RAPID PUBLISHING

RAPID PUBLISHING ARTICLES PROVIDE INFORMATION IN RESPONSE TO EMERGING OR UNIQUE TOPICS, AND MAY BE UPDATED AS NEW INFORMATION BECOMES AVAILABLE.

SYMPTOMS

Exchange databases cannot be backup up using either a third party backup solution, or the Exchange aware NT Backup application.

The application event log shows the following:

Event Type: Error
Event Source:   ESE BACKUP
Event Category: (5)
Event ID:   904
Date:       <date>
Time:       <time>
User:       N/A
Computer:   <servername>
Description:
Information Store (2264) Callback function call ErrESECBPrepareInstanceForBackup 
ended with error 0xC7FE1F45 Instance not found.


Additionally, the Exchange databases cannot be mounted.

CAUSE

The transaction log file drive has filled to capacity.

RESOLUTION

Remove un-needed log files to another disk drive to free disk space.

Refer to the following Microsoft Knowledge Base article for instructions:
240145 How to remove Exchange Server transaction log files

ADDITIONAL INFORMATION:
328794 How to protect Exchange data from hard disk failure

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Keywords: kbprb kbtshoot kbrapidpub KB924204