Symptoms

Consider the following scenario:

  • You're using a cluster that's running Windows Server 2012 or Windows Server 2012 R2.

  • You perform a backup or run the vssadmin list writers command on one of the cluster nodes.

    Note For more information about this command, see vssadmin list writers.


In this scenario, the backup or list writer operation may log the following error in the Application log on all cluster nodes other than the node that you ran the command on:

Source: VSS
Event ID: 8194
Task Category: None
Level: Error
Keywords: Classic
Description:
Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.


Cause

This problem occurs because of a permissions issue between the cluster service and the System Writer. The Cluster service on the backup node acts as a requester and queries information on the non-backup nodes. The Cluster service fails this query with an "Access Denied" error because System Writer runs as a network service that is not permitted by the cluster services COM permissions.

Resolution

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote 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 Server 2012, there are no prerequisites for installing this hotfix.

To apply this hotfix on Windows Server 2012 R2, you must first have update 2919355 installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2012 file information and notesImportant Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.21 xxx

    Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows 8 and Windows Server 2012

File name

File version

File size

Date

Time

Platform

Clussvc.exe

6.2.9200.21193

7,292,928

09-Aug-2014

06:57

x64

Windows Server 2012 R2 file information and notesImportant Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM,SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    Milestone

    Service branch

    6.3.960 0.17 xxx

    Windows Server 2012 R2

    RTM

    GDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2012 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Clussvc.exe

6.3.9600.17324

7,418,368

23-Aug-2014

06:00

x64

Additional file information for Windows Server 2012

Additional files for all supported x64-based versions of Windows Server 2012

File name

Amd64_24503f28c4a3a7f8e43e20409088b372_31bf3856ad364e35_6.2.9200.21193_none_ae5ae429f7c15629.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_3472d6f2556f8abd41e97406ee7bf7eb_31bf3856ad364e35_6.2.9200.21193_none_ac1608a2656f4584.manifest

File version

Not Applicable

File size

715

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_379429c6f85b58b0dee6cc5d30f16791_31bf3856ad364e35_6.2.9200.21193_none_7e4d637b236146bd.manifest

File version

Not Applicable

File size

715

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_40c424fe340a5ca17d7e8c20669c6e6f_31bf3856ad364e35_6.2.9200.21193_none_79ae8a7a27bee0bd.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_45d456385a6a9f1b5cb8d1be2f6c90fe_31bf3856ad364e35_6.2.9200.21193_none_fd0dbc2848ad6d07.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_510bea5d3cd07e1211ef95ff972872b2_31bf3856ad364e35_6.2.9200.21193_none_c8713280506ffafc.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_589b263ef46dd96d727e0db0884ba71d_31bf3856ad364e35_6.2.9200.21193_none_1f06a6ebabb3f59f.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_721a75a10040b2e159edee14a1c14272_31bf3856ad364e35_6.2.9200.21193_none_82a1fa75d2b69f80.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_948c3ca6f402e4272c81baaee994bb93_31bf3856ad364e35_6.2.9200.21193_none_5a531a4f186274f9.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_a6ca1f29c6daa6d166fe522aa8f0ab63_31bf3856ad364e35_6.2.9200.21193_none_5c98da34fae822f7.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_db550e978b0c1ef211c638a609f816a4_31bf3856ad364e35_6.2.9200.21193_none_06af43813efb3a26.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_df9f88a26c2f482f8ef7aa37286ed0fb_31bf3856ad364e35_6.2.9200.21193_none_02d74ffa9d565024.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_f6f8b800084551f2aba1d97d9df31c2b_31bf3856ad364e35_6.2.9200.21193_none_9696489826a19d50.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_ff50de59b276bdf376d2fe73c280301f_31bf3856ad364e35_6.2.9200.21193_none_0a0c9ba1e8243bd5.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_ffc1b45b91456b35fbeb55ce255100d0_31bf3856ad364e35_6.2.9200.21193_none_0ab59ff7fddab24e.manifest

File version

Not Applicable

File size

723

Date (UTC)

09-Aug-2014

Time (UTC)

22:15

Platform

Not Applicable

File name

Amd64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.2.9200.21193_none_130900cd4476c827.manifest

File version

Not Applicable

File size

10,086

Date (UTC)

09-Aug-2014

Time (UTC)

10:32

Platform

Not Applicable

File name

Wow64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.2.9200.21193_none_1d5dab1f78d78a22.manifest

File version

Not Applicable

File size

6,868

Date (UTC)

09-Aug-2014

Time (UTC)

07:27

Platform

Not Applicable

Additional file information for Windows Server 2012 R2

Additional files for all supported x64-based versions of Windows Server 2012 R2

File name

Amd64_0ea0361e8e429dbadaa2ab20cb599692_31bf3856ad364e35_6.3.9600.17324_none_4a13f6d0b2191650.manifest

File version

Not Applicable

File size

715

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_225376ac5481fede4a92c958e43f4e88_31bf3856ad364e35_6.3.9600.17324_none_e0b80c65bba0deef.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_29b12966dda049ad8d6948820086f5ee_31bf3856ad364e35_6.3.9600.17324_none_8e61d907cc427b0c.manifest

File version

Not Applicable

File size

715

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_2ff85bfef41f89c758bae15ce419e7cf_31bf3856ad364e35_6.3.9600.17324_none_bc664c4dad2981f8.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_485f86bdb4f3b5282be112179e76ffaa_31bf3856ad364e35_6.3.9600.17324_none_d160ded559d5c377.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_60a158c824ab27997db3494cb23fb27b_31bf3856ad364e35_6.3.9600.17324_none_bbd5b1cf77e8ad08.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_8f156d7e50b39b450cad707e8c288ffa_31bf3856ad364e35_6.3.9600.17324_none_b9ac1acebcc25ed3.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_8f23fd1097807ad4158bb9c54afc61aa_31bf3856ad364e35_6.3.9600.17324_none_cdb50fb1f702d758.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_a23ee693420278cd31d6778be8cd82bc_31bf3856ad364e35_6.3.9600.17324_none_41dc579ccdab2f05.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_ac06d32bc427881dede35bec05cddc93_31bf3856ad364e35_6.3.9600.17324_none_5611b432e1e88fd7.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_b5283f151a38f08b6f74a405c8854bd3_31bf3856ad364e35_6.3.9600.17324_none_df1ce3b6ae914ac5.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_c07a18553b078db437e539fd8d888b49_31bf3856ad364e35_6.3.9600.17324_none_729f20f96eb18985.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_cd91f02c106d817b6f40d8c477b2c514_31bf3856ad364e35_6.3.9600.17324_none_be6f748b707a2871.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_fc686d5a0307344e01626ab82d8bea05_31bf3856ad364e35_6.3.9600.17324_none_fad9ad5a86bf5aae.manifest

File version

Not Applicable

File size

723

Date (UTC)

23-Aug-2014

Time (UTC)

21:53

Platform

Not Applicable

File name

Amd64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.3.9600.17324_none_aac0d2187552460f.manifest

File version

Not Applicable

File size

9,490

Date (UTC)

23-Aug-2014

Time (UTC)

08:18

Platform

Not Applicable

File name

Wow64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.3.9600.17324_none_b5157c6aa9b3080a.manifest

File version

Not Applicable

File size

6,554

Date (UTC)

23-Aug-2014

Time (UTC)

07:36

Platform

Not Applicable


Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.

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