Microsoft KB Archive/839406

= Write operations to a shared folder on a Windows 2000-based computer over a Fibre Channel connection is slower than expected =

Article ID: 839406

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
When you write data from a Microsoft Windows 2000-based client computer to a shared folder on a Windows 2000-based server over a Fibre Channel connection, the write operation may be performed more slowly than expected. You do not experience these symptoms during local write operations.



CAUSE
This problem occurs if you overwrite an existing file in the shared folder. For example, this problem may occur if you open the file in the shared folder from the remote client computer and then save a new version of the file to the server. During the remote write operation, Cache Manager performs an additional read operation before data is written to the hard disk. The additional read operation causes slower than expected performance.



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
This hotfix requires Windows 2000 Service Pack 4 (SP4).

Restart requirement
You must restart your 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) 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-Apr-2004 18:44  5.0.2195.6920   238,416  Srv.sys 19-Jun-2003 20:05  5.0.2195.6697    83,728  Srvsvc.dll 17-Apr-2004 02:56                    7,640  Kb839406.cat



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
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For additional information about terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:

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

Keywords: kbqfe kbhotfixserver kbbug kbfix kbwin2000presp5fix KB839406

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