Microsoft KB Archive/815316

= Atapi Driver Does Not Recognize the Hard Disk After You Hot-Swap the Disk =

Article ID: 815316

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
After you hot-swap the hard disk in a Windows 2000-based computer, the system may not recognize the hard disk. However, if you initiate a bus scan by selecting the Scan for New Hardware option in Device Manager, the system does recognize the hard disk.



CAUSE
If a power-on hard reset occurs while you are hot-swapping the disk, the Atapi driver does not wait for the disk to complete the reset protocol and to enter an online state (become ready). Therefore, the Atapi driver ignores the hot-swapped hard disk.



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
No prerequisites are required.

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 fix 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 --  11-Jun-2003  21:47  5.0.2195.6754      87,056  Atapi.sys



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



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 Naming Schema for Microsoft Windows Hotfix Packages

Additional query words: hotswap ata

Keywords: kbhotfixserver kbqfe kbstoragedev kbddk kbbug kbfix kbqfe kbwin2000presp5fix KB815316

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