Resolving 'Detected Data Inconsistency' Warning In Exchange Server
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    • Resolving 'Detected data inconsistency' Warning in Exchange Server

    Axel Culver

    Data Recovery Expert
    The general causes of Exchange database corruption root from hardware errors. If the hardware is faulty, it may repeatedly introduce major inconsistencies in database. However, the other causes are unexpected shutdown, antivirus scanning, software bugs, incompatibility issues and more. In all such situations, you either need to restore from backup or apply Exchange repair utilities. If all these measures fail, you need an appropriate EDB Recovery Software.

    For example, you might encounter the below warning with your Exchange Server databases:

    “Detected data inconsistency. Check the Application log carefully for related events and patterns that may relate to this event. You may have to restore from online backup”

    When you start the server, all Exchange Server services may start, except that the mailbox stores don't mount.

    Cause

    The warning suggests corruption or inconsistency in ESE database, specifically in a table. The typical reasons for such warnings to generate are:

    1. Hardware, controllers, file system or drives issues.

    2. Antivirus scanning.

    3. Corrupted restore operation.

    Solution

    You should check the application log and system log for related description about the issue. If defective hardware comes out as issue, you should consider replacing them. You also need to repair the file system, if it is inconsistent and update the hardware system files. For database corruption concerns, you need to apply these methods:

    1. Check if you can mount the database, If yes, you can:


      - Run ExMerge to extract the data in .pst files. You can then delete and copy the database to a blank database.

    - You can move all mailboxes to another store and move them back after deleting the corrupted one.


    2. If you can mount the database:


      - Restore the database from an online backup

      - If no clean backup is available, you can repair the database using eseutil \p and isinteg -fix


    Eseutil \p performs hard recovery of database and results into deletion of pages. Thus, it is not a safe operation to perform. You can use a EDB Recovery utility instead of it, which provides secure techniques to repair and restores a corrupted Exchange database. EDB Recovery Tool are graphically rich applications that allow for easy and comprehensive database repair.

    Stellar Phoenix Mailbox Exchange Recovery is a powerful solution that repairs and restores corrupted Exchange databases. The EDB Recovery Software product supports Exchange Server 5.5, 2000 and 2003. It is a safe database repair tool with rich graphic features. The tool extracts all user mailboxes in individual .pst files without modifying its contents.
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