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No Microsoft Windows Server Multipath I/O (MPIO) disks or logical unit numbers (LUNs) are available when you use MPIO for disks that are presented by an iScsi Host Bus Adapter (HBA) in Microsoft Windows Server 2003 SP1

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

SYMPTOMS
When you use Microsoft Windows Server Multipath I/O (MPIO) for disks that are presented by an iScsi host bus adapter (HBA), no MPIO-managed disks or logical unit numbers (LUNs) are available.

Note This problem occurs when you use the Microsoft StorPort storage driver (StorPort.sys) in Microsoft Windows Server 2003 with Service Pack 1 (SP1).
CAUSE
This problem occurs because the StorPort storage driver provides the wrong bus type for disks that are available by an iScsi HBA. When this occurs, MPIO is unable determine whether pseudo-LUNs for these disks should be created. Therefore, MPIO does not create pseudo-LUNs for these disks.
RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100 How to obtain the latest service pack for Windows Server 2003

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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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: 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.

Prerequisites

The following list contains prerequisites for the hotfix:
  • Microsoft Windows Server 2003 with Service Pack 1

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 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, IA64-based versions

File nameFile versionFile sizeDateTimePlatform
Storport.sys5.2.3790.2768321,02410-Aug-200601:45IA-64
Updspapi.dll6.2.29.0638,68810-Aug-200601:47IA-64

Windows Server 2003, x64-based versions

File nameFile versionFile sizeDateTimePlatform
Storport.sys5.2.3790.2768173,05610-Aug-200601:45x64
Updspapi.dll6.2.29.0462,04810-Aug-200601:47x64

Windows Server 2003, x86-based versions

File nameFile versionFile sizeDateTimePlatform
Storport.sys5.2.3790.2768100,35209-Aug-200611:28x86
Updspapi.dll6.2.29.0371,42412-Oct-200523:13x86
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Server 2003 Service Pack 2.
MORE INFORMATION
For more information, 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
REFERENCES
For more information about recommended hotfixes for Windows Server 2003 Service Pack 1-based server clusters, click the following article number to view the article in the Microsoft Knowledge Base:
923830 Recommended hotfixes for Windows Server 2003 Service Pack 1- based server clusters
For more information about the Microsoft Storport storage driver for host bus adapter removable storage in Windows Server 2003, click the following article number to view the article in the Microsoft Knowledge Base:
916048 You experience problems when you use the Microsoft Storport storage driver for host bus adapter removable storage on a computer that is running Windows Server 2003
Properties

Article ID: 923801 - Last Review: 10/09/2011 00:30:00 - Revision: 3.0

Microsoft Windows Server 2003, Datacenter Edition (32-bit x86), Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems, Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems, Microsoft Windows Server 2003, Standard Edition (32-bit x86), Microsoft Windows Server 2003, Web Edition

  • kbautohotfix kbwinserv2003sp2fix kbstoragemgmt kbfix kbqfe KB923801
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