Microsoft KB Archive/896260

= Windows 2000 Server does not display mount points for dynamic volumes that are mounted to a folder =

Article ID: 896260

Article Last Modified on 10/26/2006

-

APPLIES TO


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Datacenter Server
 * Microsoft Windows 2000 Service Pack 4

-





SYMPTOMS
Consider the following scenario. You use a dynamic volume in a Microsoft Windows 2000 Service Pack 4 (SP 4)-based server. The dynamic volume spans over a storage area network (SAN). You mount the dynamic volume to a folder of another dynamic volume. In this scenario, you experience the following symptoms:  After you restart the computer, the volume mount points are not displayed. Windows Explorer displays the drive letters and folders that are assigned to the dynamic volume. After you follow these steps, the Change Drive Letters and Paths windows may not display the information about the dynamic volume and the name of the folder on which the dynamic volume is mounted:  You click All Tasks on the Actions menu in the Disk Management utility. You click Change Drive Letters and Paths.  You cannot use CommVault Galaxy Backup and Recovery software to back up the dynamic volumes that you created.</li> If you use the Mountvol command-line tool to list the dynamic volume mount points, you see output that is similar to the following output:


 * NO MOUNT POINTS ***

\\?\Volume{ }\ file:///\\?\Volume% \>

</li></ul>

<div class="cause_section">

CAUSE
This problem occurs if the Dmio.sys driver tries to register the Mountmgr interface before the dynamic volume is completely installed.

<div class="resolution_section">

Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
Microsoft Windows 2000 Service pack 4 (SP 4) must be installed before you apply this hotfix.

Restart requirement
You must restart the 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 tool in Control Panel. <pre class="fixed_text">  Date         Time   Version          Size       File name -  07-Apr-2005  09:57  2195.7038.297.3    139,536  Dmio.sys 10-Feb-2004 19:47  5.0.2195.6897       30,160  Mountmgr.sys 07-Apr-2005 10:03  5.0.2195.7038    1,714,432  Ntkrnlmp.exe 07-Apr-2005 10:03  5.0.2195.7038    1,713,472  Ntkrnlpa.exe 06-Apr-2005 21:34  5.0.2195.7038    1,735,744  Ntkrpamp.exe 07-Apr-2005 10:02  5.0.2195.7038    1,690,688  Ntoskrnl.exe 25-Feb-2005 17:43  6.1.22.4           371,936  Updspapi.dll

<div class="workaround_section">

WORKAROUND
To work around this problem, manually remount the dynamic volume to folders.

<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

<div class="moreinformation_section">

MORE INFORMATION
For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For more information about the standard terminology that is used to describe Microsoft software updates, 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

Keywords: kbbug kbfix kbwin2000presp5fix kbhotfixserver kbqfe KB896260

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.