Microsoft KB Archive/197366

= Mirror Sets Report Incorrect Status After Failure of Shadow Drive Causing Corruption on the Mirror =

Article ID: 197366

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q197366



SYMPTOMS
When a disk fails on a system with multiple mirror sets, the status of mirror sets in Disk Administrator displays incorrectly when the computer is restarted and may cause data corruption. Running Chkdsk.exe on a mirrored drive reports errors because of corruption.



CAUSE
This problem occurs because of a thread synchronization problem in Windows NT.



RESOLUTION
A supported fix that corrects this problem is now available from Microsoft, but has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Windows NT service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

The English version of this fix should have the following file attributes or later:

  Date      Time                 Size    File Name     Platform -  12/07/98  06:49p              33,968   Ftdisk.sys    (x86) 12/07/98 06:48p              56,752   Ftdisk.sys    (Alpha)



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0.

Additional query words: 4.00

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB197366

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