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XADM: How to Defrag an EDB File on a Non-Exchange Server

This article was previously published under Q163627
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In certain cases it may be necessary to defragment a Microsoft ExchangeServer database file offline. If there is not enough disk space on theserver running Microsoft Exchange Server to do this, but there is enoughdisk space on another Windows NT Server that does not have MicrosoftExchange Server running on it, you can perform the defragmentationwithout having to install Microsoft Exchange Server. This article willexplain how to do this.
To perform a defrag on a Windows NT Server that does not have MicrosoftExchange Server running on it, follow these steps:

  1. Verify that there is enough hard disk space on the server where you want to perform the defrag. There must be at least twice the amount of free hard disk space as the the size of the database file. If the database file is 10G, there must be at least 20G of free hard disk space.
  2. Create a blank directory on the non-Exchange server and copy the following files to that directory:
          Edb.dll                       - located in the exchsrvr\bin                                      directory      Edbutil.exe                   - also in the exchsrvr\bin directory      Priv.edb, Pub.edb, or Dir.edb - the database file needing                                      defragmentation						
  3. From the new directory on the non-Exchange server, run the following command:
          EDBUTIL /D <path to the database file>						
    For example, if the directory where these files are located is C:\Defrag, and you want to defrag the Priv.edb, use the following command:
          EDBUTIL /D C:\DEFRAG\PRIV.EDB						

Article ID: 163627 - Last Review: 12/04/2015 16:22:32 - Revision: 3.3

Microsoft Exchange Server 4.0 Standard Edition, Microsoft Exchange Server 5.0 Standard Edition

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