Error message when you back up a Windows Server 2003-based virtual machine on a Windows Server 2008 Hyper-V-based computer: "GetWriterStatus FAILED for Selected writer [Microsoft Hyper-V VSS Writer], writer is in state [9] [VSS_WS_FAILED_AT_FREE...

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Article ID: 959978 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You run a Windows Server 2003-based virtual machine on a Windows Server 2008 Hyper-V-based computer.
  • The virtual machine has files that reside on the array disk volume.
  • You try to back up the virtual machine by using Windows Server Backup.

    Note Windows Server Backup uses the Microsoft Hyper-V VSS writer to create a hardware snapshot.
In this scenario, the Hyper-V VSS writer crashes. Therefore, the snapshot is not created. Additionally, you may receive following error message:
GetWriterStatus FAILED for Selected writer [Microsoft Hyper-V VSS Writer], writer is in state [9] [VSS_WS_FAILED_AT_FREEZE]. hrWriterFailure [80042319]
When this issue occurs, the following VSS error is logged in the Application log:


An unhandled exception was encountered while processing a VSS writer event callback. The VSS writer infrastructure is in an unstable state. The writer hosting process must be restarted in order to resume VSS functionality.
Writer name: Microsoft Hyper-V VSS Writer
Writer id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
Writer instance: {d18f2732-5a1d-4f18-b82c-433507243560}
Process command line: C:\Windows\system32\vmms.exe
Process ID: 2264
Writer operation: 1013
Writer state: 4
Exception code: 0xe06d7363
Exception location: 02

If you run the vssadmin list writers command in Windows Server 2008, "Microsoft Hyper-V VSS Writer" is not listed in the output. Therefore, you have to restart the Hyper-V Management service so that the Hyper-V VSS writer works correctly.

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.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

To apply this hotfix, you must have Windows Server 2008 installed on the computer.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 2008 file information note

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 x86-based versions of Windows Server 2008
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File nameFile versionFile sizeDateTimePlatform
Vssvc.exe6.0.6001.223081,055,74413-Nov-200804:50x86
For all supported x64-based versions of Windows Server 2008
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File nameFile versionFile sizeDateTimePlatform
Vssvc.exe6.0.6001.223081,433,60013-Nov-200806:05x64
For all supported Itanium-based versions of Windows Server 2008
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File nameFile versionFile sizeDateTimePlatform
Vssvc.exe6.0.6001.223082,438,14413-Nov-200805:51IA-64

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, click the following article numbers to view the articles in the Microsoft Knowledge Base:
958662 How to back up Hyper-V virtual machines from the parent partition on a Windows Server 2008-based computer by using Windows Server Backup
956697 Windows Server 2008 Hyper-V VSS writer is not used during a backup job because of corrupted or invalid virtual machine configuration files
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008
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File namePackage_for_kb959978_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,421
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,422
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)13-Nov-2008
Time (UTC)18:38
File nameX86_ddc150dd456bdf85417a2815f6e50364_31bf3856ad364e35_6.0.6001.22308_none_bfbf624f15fb72f6.manifest
File versionNot Applicable
File size698
Date (UTC)13-Nov-2008
Time (UTC)18:38
File nameX86_microsoft-windows-vssservice_31bf3856ad364e35_6.0.6001.22308_none_5b5e715e30edd897.manifest
File versionNot Applicable
File size33,700
Date (UTC)13-Nov-2008
Time (UTC)05:36
Additional files for all supported x64-based versions of Windows Server 2008
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File nameAmd64_55ca5f33bdfeab171de68b98c3045883_31bf3856ad364e35_6.0.6001.22308_none_bcb90319ec327b31.manifest
File versionNot Applicable
File size702
Date (UTC)13-Nov-2008
Time (UTC)18:38
File nameAmd64_microsoft-windows-vssservice_31bf3856ad364e35_6.0.6001.22308_none_b77d0ce1e94b49cd.manifest
File versionNot Applicable
File size33,990
Date (UTC)13-Nov-2008
Time (UTC)08:38
File namePackage_for_kb959978_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,438
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,438
Date (UTC)13-Nov-2008
Time (UTC)18:38
Additional files for all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_0032b668dba227cbe1de504335f0b92a_31bf3856ad364e35_6.0.6001.22308_none_d27eadd71694e84a.manifest
File versionNot Applicable
File size700
Date (UTC)13-Nov-2008
Time (UTC)18:38
File nameIa64_microsoft-windows-vssservice_31bf3856ad364e35_6.0.6001.22308_none_5b60155430ebe193.manifest
File versionNot Applicable
File size33,970
Date (UTC)13-Nov-2008
Time (UTC)06:41
File namePackage_for_kb959978_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,426
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)13-Nov-2008
Time (UTC)18:38
File namePackage_for_kb959978_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)13-Nov-2008
Time (UTC)18:38

Properties

Article ID: 959978 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbsurveynew kbqfe KB959978

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