Article ID: 815316 - Last Review: October 27, 2006 - Revision: 2.5

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

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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.
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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.
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RESOLUTION

Hotfix Information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
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Prerequisites

No prerequisites are required.
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Restart Requirement

You must restart your computer after you apply this hotfix.
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Hotfix Replacement Information

This hotfix does not replace any other hotfixes.
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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
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
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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  (http://support.microsoft.com/kb/816915/EN-US/ ) New Naming Schema for Microsoft Windows Hotfix Packages
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APPLIES TO
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Advanced Server
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Keywords: 
kbautohotfix kbhotfixserver kbqfe kbstoragedev kbddk kbbug kbfix kbqfe kbwin2000presp5fix KB815316
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