Microsoft KB Archive/170009

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XADM: NTFS Compressed Volume Causes Store to Fail

Article ID: 170009

Article Last Modified on 2/22/2007


  • Microsoft Exchange Server 4.0 Standard Edition
  • Microsoft Exchange Server 5.0 Standard Edition
  • Microsoft Exchange Server 5.5 Standard Edition
  • Microsoft Exchange 2000 Server Standard Edition

This article was previously published under Q170009


On a compressed NTFS partition, the Microsoft Exchange Server information store, may get corrupted when its size reaches about 4 gigabytes (GB). This can cause failure of the information store.


A compressed NTFS partition can adversely affect the Microsoft Exchange Server by causing one or more of the following problems:

  • High CPU utilization.
  • Enumeration of large NTFS directory may take a long time.
  • Degradation of NTAS server with NTFS partition that includes many Files.

For additional information, please see the following articles in the Microsoft Knowledge Base:

128447 Enumeration of Large NTFS Directory Takes a Long Time

130839 NTFS Performance Problem with Many Files

Keywords: kbprb KB170009