Microsoft KB Archive/830051

= Event ID 32 and Event ID 51 appear repeatedly in the system log in Windows 2000 SP4 =

Article ID: 830051

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Service Pack 4
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Datacenter Server

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SYMPTOMS
On a computer that is running Microsoft Windows 2000 Service Pack 4 (SP4), the following two events may appear repeatedly in the system log of Event Viewer: Event Source: Disk

Event Category None

Event ID: 32

Date:

Time:

Event Type: Warning

Description: The driver detected that the device \Device\ \ has its write cache enabled. Data corruption may occur.

Event Source: Disk

Event Category: None

Event ID: 51

Date:

Time:

Event Type: Warning

Description: An error was detected on device \Device\ \ during a paging operation.



CAUSE
This problem occurs if you have installed one or more storage devices that do not support cache commands. The Windows 2000 SP4 Disk.sys driver writes many events to the system log when it performs write operations to a storage device that does not support cache commands.

Some storage devices do not support cache control commands, such as the WRITE command when it is used with the ForceUnitAccess option or the MODE SELECT command that is used to change the cache. While Microsoft Windows 2000 Service Pack 3 (SP3) also logs events in the system log when it accesses a storage device that does not support cache commands, Windows 2000 SP3 writes these events only when it first accesses the device. However, Windows 2000 SP4 writes many warning events to the system log every time that it accesses the device that does not support cache commands.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
You must be running Microsoft Windows 2000 Service Pack 4 to install this hotfix. For additional information about how to obtain the latest Windows 2000 Service Pack, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to obtain the latest Windows 2000 service pack

Restart requirement
You must restart your computer after you apply this hotfix. However, you do not have to restart your computer immediately after you install this hotfix.

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

File information
The English version of this has the file attributes (or later) 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 tool in Control Panel.   Date         Time   Version            Size    File name --  16-Jan-2004  00:18  5.0.2195.6891      88,048  Atapi.sys 16-Jan-2004 00:18  5.0.2195.6891      35,632  Classpnp.sys 16-Jan-2004 00:19  5.0.2195.6891      30,832  Disk.sys



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



MORE INFORMATION
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB830051

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