Inconsistent data is returned when you use the TargetMapping function together with the HBA API for an MPIO-compatible storage device in Windows Server 2003

Consider the following scenario. In Microsoft Windows Server 2003, you use the output from the TargetMapping function. This output does not correspond to the Logical Unit Number (LUN) on a Multipath I/O (MPIO)-compatible storage device. In this scenario, inconsistent data is returned.

Note This symptom occurs when you use certain versions of the HBA API (Hbaapi.dll).

Update information

The following files are available for download from the Microsoft Download Center:

Update for Windows Server 2003

Download the WindowsServer2003-KB922772-x86-ENU.exe package now.

Update for Windows Server 2003 for Itanium-based Systems

Download the WindowsServer2003-KB922772-ia64-ENU.exe package now.

Update for Windows Server 2003 x64 Edition

Download the WindowsServer2003.WindowsXP-KB922772-x64-ENU.exe package now.

Release Date: September 19, 2006

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

To apply this update, the computer must be running one of the following operating systems:

• A 32-bit version of Windows Server 2003 with Service Pack 1 (SP1)
• An Itanium-based version of Windows Server 2003 with SP1
• An x64-based version of Windows

Restart requirement

You must restart the computer after you apply this update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this update has the file attributes (or later file attributes) 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 item in Control Panel.

Windows Server 2003, Itanium-based versions

Windows Server 2003, x86-based versions

Windows Server 2003, x64-based versions

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Technical support for x64-based versions of Microsoft Windows

If your hardware came with a Microsoft Windows x64 edition already installed, your hardware manufacturer provides technical support and assistance for the Windows x64 edition. In this case, your hardware manufacturer provides support because a Windows x64 edition was included with your hardware. Your hardware manufacturer might have customized the Windows x64 edition installation by using unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with a Windows x64 edition. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware. If you purchased a Windows x64 edition such as a Microsoft Windows Server 2003 x64 edition separately, contact Microsoft for technical support.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site: For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site: