VSS cannot create a volume snapshot even when VSS has sufficient memory space in Windows Server 2003

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Article ID: 940239 - View products that this article applies to.
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SYMPTOMS

On a computer that is running Windows Server 2003, Volume Shadow Copy Service (VSS) cannot create a volume snapshot. Instead, you receive the following error message:
out of memory
This problem occurs even when VSS has sufficient memory space to create the volume snapshot.

Note System Center Data Protection Manager (DPM) depends heavily on VSS snapshots. The issue makes DPM unreliable.

When this problem occurs, the following event is logged in the Application log:

Event Type: Error
Event Source: VolSnap
Event ID: 21
Description:
The flush and hold operation for volume volume_name was aborted because of low available system memory.

This problem usually occurs if either of the following conditions is true:
  • The system can allocate sufficient memory space for the VSS service. However, the available memory space is low.
  • VSS obtains sufficient memory space when Memory Manager trims other processes.

CAUSE

This problem occurs because VSS incorrectly detects low-memory conditions. Low-memory conditions are based on the LowMemoryCondition event. If the LowMemoryCondition event is signed, VSS denies the volume snapshot action.

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 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:
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

You must have Windows Server 2003 Service Pack 1 or Service Pack 2 installed to apply this hotfix.

Restart requirement

You have to 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 Server 2003 with Service Pack 2, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Eventcls.dll5.2.3790.412631,23205-Aug-200713:46x86SP2
Ftdisk.sys5.2.3790.4126137,21603-Aug-200714:44x86SP2
Partmgr.sys5.2.3790.412625,08803-Aug-200715:49x86SP2
Swprv.dll5.2.3790.4126285,69605-Aug-200717:23x86SP2
Volsnap.sys5.2.3790.4126168,96003-Aug-200714:44x86SP2
Vssadmin.exe5.2.3790.4126134,14403-Aug-200714:45x86SP2
Vssapi.dll5.2.3790.4126566,27205-Aug-200713:46x86SP2
Vssui.dll5.2.3790.4126144,38405-Aug-200713:46x86SP2
Vssvc.exe5.2.3790.4126837,12003-Aug-200714:45x86SP2
Vss_ps.dll5.2.3790.412620,48005-Aug-200713:46x86SP2
Windows Server 2003 with Service Pack 2, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.412646,08005-Aug-200717:27x64SP2Not applicable
Ftdisk.sys5.2.3790.4126240,12805-Aug-200717:27x64SP2Not applicable
Partmgr.sys5.2.3790.412645,05605-Aug-200717:27x64SP2Not applicable
Volsnap.sys5.2.3790.4126326,65605-Aug-200717:27x64SP2Not applicable
Vssui.dll5.2.3790.4126233,47205-Aug-200717:27x64SP2Not applicable
Vss_ps.dll5.2.3790.412626,62405-Aug-200717:27x64SP2Not applicable
Swprv.dll5.2.3790.4126685,05605-Aug-200717:27x64SP2Not applicable
Vssadmin.exe5.2.3790.4126245,24805-Aug-200717:27x64SP2Not applicable
Vssapi.dll5.2.3790.41261,332,73605-Aug-200717:27x64SP2Not applicable
Vssvc.exe5.2.3790.41262,063,87205-Aug-200717:27x64SP2Not applicable
Swprv.dll5.2.3790.4126685,05605-Aug-200717:27x64SP2Not applicable
Vssadmin.exe5.2.3790.4126245,24805-Aug-200717:27x64SP2Not applicable
Vssapi.dll5.2.3790.41261,332,73605-Aug-200717:27x64SP2Not applicable
Vssvc.exe5.2.3790.41262,063,87205-Aug-200717:27x64SP2Not applicable
Swprv.dll5.2.3790.4126685,05605-Aug-200717:27x64SP2Not applicable
Vssadmin.exe5.2.3790.4126245,24805-Aug-200717:27x64SP2Not applicable
Vssapi.dll5.2.3790.41261,332,73605-Aug-200717:27x64SP2Not applicable
Vssvc.exe5.2.3790.41262,063,87205-Aug-200717:27x64SP2Not applicable
Swprv.dll5.2.3790.4126685,05605-Aug-200717:27x64SP2Not applicable
Vssadmin.exe5.2.3790.4126245,24805-Aug-200717:27x64SP2Not applicable
Vssapi.dll5.2.3790.41261,332,73605-Aug-200717:27x64SP2Not applicable
Vssvc.exe5.2.3790.41262,063,87205-Aug-200717:28x64SP2Not applicable
Wvssapi.dll5.2.3790.4126566,27205-Aug-200717:28x86SP2WOW
Wvss_ps.dll5.2.3790.412620,48005-Aug-200717:28x86SP2WOW
Windows Server 2003 with Service Pack 2, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.412682,43205-Aug-200717:27IA-64SP2Not applicable
Ftdisk.sys5.2.3790.4126499,20005-Aug-200717:27IA-64SP2Not applicable
Partmgr.sys5.2.3790.412683,45605-Aug-200717:27IA-64SP2Not applicable
Volsnap.sys5.2.3790.4126505,34405-Aug-200717:27IA-64SP2Not applicable
Vssui.dll5.2.3790.4126407,55205-Aug-200717:27IA-64SP2Not applicable
Vss_ps.dll5.2.3790.412633,28005-Aug-200717:27IA-64SP2Not applicable
Swprv.dll5.2.3790.4126861,18405-Aug-200717:27IA-64SP2Not applicable
Vssadmin.exe5.2.3790.4126313,85605-Aug-200717:27IA-64SP2Not applicable
Vssapi.dll5.2.3790.41261,654,27205-Aug-200717:27IA-64SP2Not applicable
Vssvc.exe5.2.3790.41262,588,16005-Aug-200717:27IA-64SP2Not applicable
Swprv.dll5.2.3790.4126861,18405-Aug-200717:27IA-64SP2Not applicable
Vssadmin.exe5.2.3790.4126313,85605-Aug-200717:27IA-64SP2Not applicable
Vssapi.dll5.2.3790.41261,654,27205-Aug-200717:27IA-64SP2Not applicable
Vssvc.exe5.2.3790.41262,588,16005-Aug-200717:27IA-64SP2Not applicable
Wvssapi.dll5.2.3790.4126566,27205-Aug-200717:27x86SP2WOW
Wvss_ps.dll5.2.3790.412620,48005-Aug-200717:27x86SP2WOW
Windows Server 2003 with Service Pack 1, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Eventcls.dll5.2.3790.298531,23205-Aug-200713:04x86SP1
Ftdisk.sys5.2.3790.2985137,21603-Aug-200713:29x86SP1
Partmgr.sys5.2.3790.298525,08803-Aug-200714:25x86SP1
Swprv.dll5.2.3790.2985285,69605-Aug-200713:04x86SP1
Volsnap.sys5.2.3790.2985168,96003-Aug-200713:29x86SP1
Vssadmin.exe5.2.3790.2985134,14403-Aug-200713:29x86SP1
Vssapi.dll5.2.3790.2985566,27205-Aug-200713:04x86SP1
Vssui.dll5.2.3790.2985144,38405-Aug-200713:04x86SP1
Vssvc.exe5.2.3790.2985837,12003-Aug-200713:29x86SP1
Vss_ps.dll5.2.3790.298520,48005-Aug-200713:04x86SP1

Windows Server 2003, x64-based versions

Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.298546,08005-Aug-200717:22x64SP1Not applicable
Ftdisk.sys5.2.3790.2985240,12805-Aug-200717:22x64SP1Not applicable
Partmgr.sys5.2.3790.298545,05605-Aug-200717:22x64SP1Not applicable
Volsnap.sys5.2.3790.2985326,65605-Aug-200717:22x64SP1Not applicable
Vssui.dll5.2.3790.2985233,47205-Aug-200717:22x64SP1Not applicable
Vss_ps.dll5.2.3790.298526,62405-Aug-200717:22x64SP1Not applicable
Swprv.dll5.2.3790.2985685,05605-Aug-200717:22x64SP1Not applicable
Vssadmin.exe5.2.3790.2985245,24805-Aug-200717:22x64SP1Not applicable
Vssapi.dll5.2.3790.29851,333,24805-Aug-200717:22x64SP1Not applicable
Vssvc.exe5.2.3790.29852,063,87205-Aug-200717:22x64SP1Not applicable
Swprv.dll5.2.3790.2985685,05605-Aug-200717:22x64SP1Not applicable
Vssadmin.exe5.2.3790.2985245,24805-Aug-200717:22x64SP1Not applicable
Vssapi.dll5.2.3790.29851,333,24805-Aug-200717:22x64SP1Not applicable
Vssvc.exe5.2.3790.29852,063,87205-Aug-200717:22x64SP1Not applicable
Swprv.dll5.2.3790.2985685,05605-Aug-200717:22x64SP1Not applicable
Vssadmin.exe5.2.3790.2985245,24805-Aug-200717:22x64SP1Not applicable
Vssapi.dll5.2.3790.29851,333,24805-Aug-200717:22x64SP1Not applicable
Vssvc.exe5.2.3790.29852,063,87205-Aug-200717:22x64SP1Not applicable
Swprv.dll5.2.3790.2985685,05605-Aug-200717:22x64SP1Not applicable
Vssadmin.exe5.2.3790.2985245,24805-Aug-200717:22x64SP1Not applicable
Vssapi.dll5.2.3790.29851,333,24805-Aug-200717:22x64SP1Not applicable
Vssvc.exe5.2.3790.29852,063,87205-Aug-200717:22x64SP1Not applicable
Wvssapi.dll5.2.3790.2985566,27205-Aug-200717:22x86SP1WOW
Wvss_ps.dll5.2.3790.298520,48005-Aug-200717:22x86SP1WOW
Windows Server 2003 with Service Pack 1, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.298582,43205-Aug-200717:22IA-64SP1Not applicable
Ftdisk.sys5.2.3790.2985499,20005-Aug-200717:22IA-64SP1Not applicable
Partmgr.sys5.2.3790.298583,45605-Aug-200717:22IA-64SP1Not applicable
Volsnap.sys5.2.3790.2985505,34405-Aug-200717:22IA-64SP1Not applicable
Vssui.dll5.2.3790.2985407,55205-Aug-200717:22IA-64SP1Not applicable
Vss_ps.dll5.2.3790.298533,28005-Aug-200717:22IA-64SP1Not applicable
Swprv.dll5.2.3790.2985860,67205-Aug-200717:22IA-64SP1Not applicable
Vssadmin.exe5.2.3790.2985313,85605-Aug-200717:22IA-64SP1Not applicable
Vssapi.dll5.2.3790.29851,654,27205-Aug-200717:22IA-64SP1Not applicable
Vssvc.exe5.2.3790.29852,588,16005-Aug-200717:22IA-64SP1Not applicable
Swprv.dll5.2.3790.2985860,67205-Aug-200717:22IA-64SP1Not applicable
Vssadmin.exe5.2.3790.2985313,85605-Aug-200717:22IA-64SP1Not applicable
Vssapi.dll5.2.3790.29851,654,27205-Aug-200717:22IA-64SP1Not applicable
Vssvc.exe5.2.3790.29852,588,16005-Aug-200717:22IA-64SP1Not applicable
Wvssapi.dll5.2.3790.2985566,27205-Aug-200717:22x86SP1WOW
Wvss_ps.dll5.2.3790.298520,48005-Aug-200717:22x86SP1WOW

STATUS

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

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 940239 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
Keywords: 
kbautohotfix kbexpertiseinter kbfix kbqfe kbHotfixServer KB940239

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