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MSExchangeIS 1003: Insufficient Free Space Remaining on Exchange Database Drive

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2011-01-20

The Microsoft® Exchange Database Troubleshooter Tool detected one or more MSExchangeIS 1003 events in the Application log. This error can occur if there is insufficient amount of free disk space on the drive that contains the databases that you are trying to mount.

When the disk that contains the Exchange databases runs out of free disk space, the Microsoft Exchange Information Store service will log an MSExchangeIS 1003 event, and the affected databases will dismount. After this occurs, you may be unable to mount the databases for the affected storage group. This error applies to the following versions of Exchange server:

  • Microsoft Exchange Server 2007

  • Microsoft Exchange Server 2003

  • Microsoft Exchange 2000 Server

To resolve this issue, free some disk space on the database drive, and then try to mount the databases again. To do this, perform one or more of the following:

  • If the Exchange database files are the only files that are located on the hard disk, you may have to perform an offline defragmentation of the databases to free disk space.

    noteNote:
    Depending on how much free space is available in the database, this step may not resolve your issue.

    For more information about performing this step, see Microsoft Knowledge Base article 328804, How to defragment Exchange databases.

    In addition, see How to Run Eseutil /D (Defragmentation).

  • If the Exchange transaction log files are also located on this drive, you may be able to free disk space by removing unnecessary log files.

    For more information about performing this step, see Microsoft Knowledge Base article 240145, How to remove Exchange Server transaction log files.

 
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