A VSS hardware snapshot database keeps growing with duplicated snapshot information when it is updated for snapshot creation/deletion in Windows Server 2008 or in Windows Vista SP1 systems

Article ID: 959476 – Last Review: December 2, 2008 – Revision: 1.1

A VSS hardware snapshot database keeps growing with duplicated snapshot information when it is updated for snapshot creation/deletion in Windows Server 2008 or in Windows Vista SP1 systems

Hotfix Hotfix Download Available
View and request hotfix downloads

On This Page

SYMPTOMS

When you start multiple Volume Shadow Copy (VSS) requestor instances with VSS hardware provider to delete snapshots in Windows Server 2008 or Windows Vista SP1 systems, each VSS requestor instance may take an increasingly longer time to finish. Eventually, the VSS requestor instances fail. Additionally, the VSS hardware provider database increases with each duplicated snapshot.

CAUSE

This problem occurs because the VSS service uses a Boolean member variable to track whether a set of snapshots must be loaded. However, access to this variable is not serialized. Therefore, when multiple calls access this variable at the same time, the snapshots are loaded repeatedly into the database. Therefore, the VSS hardware provider database keeps growing.

RESOLUTION

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 the problem described in this article. 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:

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

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

To apply this hotfix on Windows Vista-based computers, you must have Windows Vista SP1 installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

935791  (/Feedback.aspx?kbNumber=935791/ ) How to obtain the latest Windows Vista service pack

No prerequisites are required for Windows Server 2008-based computers.

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 item in Control Panel.

Windows Vista and Windows Server 2008 file information notes

The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported 32-bit versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File name File version File size Date Time Platform
Vssvc.exe 6.0.6001.22303 1,055,744 06-Nov-2008 12:59 x86
For all supported 64-bit versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File name File version File size Date Time Platform
Vssvc.exe 6.0.6001.22303 1,433,600 06-Nov-2008 14:17 x64
For all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File name File version File size Date Time Platform
Vssvc.exe 6.0.6001.22303 2,438,144 06-Nov-2008 13:53 IA-64

STATUS

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


APPLIES TO
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
Keywords: 
kbsurveynew kbautohotfix kbexpertiseinter kbfix kbbug kbqfe kbhotfixserver KB959476

 

Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
Microsoft Corporation. All rights reserved. Terms of Use | Trademarks


You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

AddThis Social Bookmark Button

Leave a Reply

*
To prove that you're not a bot, enter this code
Anti-Spam Image