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

ID: Q197366

The information in this article applies to:

Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server version 4.0

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/support/supportnet/default.asp

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)

NOTE: If you contact Microsoft to obtain this fix, a fee may be charged. This fee is refundable if it is determined that you only require the fix you requested. However, this fee is non-refundable if you request additional technical support.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:

Q154871 Determining If Your Product Is Eligible for No-Charge Technical Support

STATUS

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

Additional query words: 4.00

Keywords : kbbug4.00 kbfix4.00
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug