Microsoft KB Archive/923628

= The backup application stops responding when you perform a backup that uses a volume snapshot in Windows Server 2003 with SP1 =

Article ID: 923628

Article Last Modified on 10/11/2007

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APPLIES TO

 Microsoft Windows Server 2003 SP1, when used with:  Microsoft Windows Server 2003, Web Edition

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

 Microsoft Windows Server 2003, Enterprise Edition

 Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)</li></ul>

 Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems</li></ul>

 Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul> </li> Microsoft Windows Server 2003, Standard x64 Edition</li> Microsoft Windows Server 2003, Enterprise x64 Edition</li> Microsoft Windows Server 2003, Datacenter x64 Edition</li></ul>

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<div class="symptoms_section">

SYMPTOMS
When you use the backup utility in Microsoft Windows Server 2003 to perform a backup, the backup utility stops responding. Therefore, the backup fails. Additionally, if you have other scheduled backup jobs, these backup jobs may also fail.

When this problem occurs, an event that resembles the following appears in Event Viewer: Event Type: Error

Event Source: VolSnap

Event Category: None

Event ID: 32

Description: The description for Event ID ( 32 ) in Source ( VolSnap ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event:

C:\...ck\tmp\westfile03.nbpower.com\L_2006-05-02-32.

This problem occurs if the backup uses a volume snapshot.

<div class="cause_section">

CAUSE
This problem occurs because of an issue in the Volsnap.sys file. This issue generates a deadlock condition. In the deadlock condition, the system I/O is suspended. A file deletion operation is waiting for the system I/O to resume.

<div class="resolution_section">

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 now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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

Prerequisites
To apply this update, you must have Microsoft Windows Server 2003 Service Pack 1 (SP1) installed. For more information about how to obtain Windows Server 2003 Service Pack 1, 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

Restart information
You must restart the computer after you apply this update.

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, Itanium-based versions
<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. This problem was first corrected in Windows Server 2003 Service Pack 2.

<div class="moreinformation_section">

MORE INFORMATION
To start the Windows backup utility in Windows Server 2003, click Start, click Run, type ntbackup, and then click OK.

For more information about the terms that are used to describe 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

Additional query words: deadlock dangling snapshot volsnap VSS rollup roll-up volume shadow copy

Keywords: kbfix kbqfe kbpubtypekc kbexpertiseadvanced kbhotfixserver kbwinserv2003presp2fix kbwinserv2003sp2fix KB923628

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