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Disks are displayed with an incorrect status of "Not Initialized" in Disk Management when you use an MSA 1000 SAN storage system in Windows Server 2003

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.

Assume a scenario where you use a Modular SAN Array (MSA) 1000 storage system on a two-node cluster and where one node of the cluster owns the hard disks. When you view the hard disks on the other node of the cluster in Disk Management, the hard disks may not display the expected status settings of Unknown and Unreadable. Instead, these hard disks may display a status of Not Initialized, and the volume may display a status of Unallocated. This symptom is also known to occur on the EMC CLARiiON CX400 and the CX600 storage systems.
This problem occurs in situations where the ERROR_BUSY error code is not translated correctly to the disk status description of Unreadable in Disk Management.

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.


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 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   ------------------------------------------------------13-May-2003    11:40  5.2.3790.12  157,000  Vds.exe   
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For additional information about deploying server clusters in a storage area network (SAN) environment, click the following article number to view the article in the Microsoft Knowledge Base:
818668 White paper: Microsoft Windows clustering: storage area networks

Article ID: 820127 - Last Review: 07/24/2007 19:03:50 - Revision: 2.10

Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)

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