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 informationA 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.
PrerequisitesNo prerequisites are required.
Restart requirementYou must restart your computer after you apply this hotfix.
Hotfix replacement informationThis 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: Feb 15, 2017 - Revision: 3