Microsoft KB Archive/931689

= The Chkdsk.exe tool cannot detect bad clusters or bad sectors on a Windows Server 2003-based computer when the size of a compressed file is larger than 4 gigabytes (GB) =

Article ID: 931689

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Datacenter x64 Edition
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003 R2 Standard x64 Edition
 * Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003 R2 Enterprise x64 Edition
 * Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
 * Microsoft Windows Server 2003 R2 Datacenter x64 Edition
 * Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)

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SYMPTOMS
When you scan a volume on a Windows Server 2003-based computer by using the chkdsk /r command, you receive a status message that resembles the following: CHKDSK is verifying file data (stage 4 of 5)... 0 percent completed. 1 percent completed. 2 percent completed. 3 percent completed. Windows replaced bad clusters in file of name. 100 percent completed. File data verification completed. CHKDSK is verifying free space (stage 5 of 5)... This status message incorrectly indicates that Windows replaced bad clusters. This status message can occur if the following conditions are true:
 * The current volume has a compressed file.
 * The size of the compressed file is larger than 4 gigabytes (GB).



CAUSE
During a surface scan, the Chkdsk.exe tool tries to read the contents of all compressed files on the volume. A failure to read one or more clusters in a file will indicate that a failure occurred when the Chkdsk.exe tool read the data on the volume.

If the Chkdsk.exe tool encounters a compressed file that is larger than 4 GB, an arithmetic error occurs that stops the scan of the 4-GB compressed file. When this issue occurs, the Chkdsk.exe tool assumes that an error occurred when the Chkdsk.exe tool tried to read the data on the volume.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
This hotfix requires that Microsoft Windows Server 2003 with Service Pack 1 (SP1) or with a later service pack is installed on the computer.

889100 How to obtain the latest service pack for Windows Server 2003

Restart requirement
You have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2003 with Service Pack 2 (SP2), Itanium-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
After you install this hotfix, and you run the chkdsk /r command, you receive a message that resembles the following: CHKDSK is verifying files (stage 1 of 5)... File verification completed. CHKDSK is verifying indexes (stage 2 of 5)... Index verification completed. CHKDSK is verifying security descriptors (stage 3 of 5)... Security descriptor verification completed. CHKDSK is verifying file data (stage 4 of 5)... File data verification completed

Keywords: kbqfe kbexpertiseinter kbhotfixserver KB931689

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