Symptoms

Assume that you apply Windows Server 2008 R2 Service Pack 1 (SP1) on a Windows Server 2008 R2-based computer, and then you perform a system state backup. In this situation, iSCSI support files such as Iscsilog.dll are not included in the backup files that correspond to the Volume Shadow Copy Service (VSS) snapshot. Additionally, when you perform a system state backup by using third-party software, the backup operation fails because an incomplete VSS snapshot is detected.

Cause

This issue occurs because the VSS system writer does not enumerate the Iscsilog.dll file 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 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 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, you must be running Windows Server 2008 R2 Service Pack 1 (SP1).

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global 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 2008 R2 file information notes

Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" 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, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    0.
    16xxx

    Windows Server 2008 R2

    RTM

    GDR

    6.1.760
    1.
    21xxx

    Windows Server 2008 R2

    SP1

    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 2008 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 2008 R2

File name

File version

File size

Date

Time

Platform

Crypt32.dll

6.1.7601.21935

1,464,832

03-Mar-2012

06:23

x64

Cryptsvc.dll

6.1.7601.21935

186,368

03-Mar-2012

06:23

x64

Drvstore.dll

6.1.7601.21935

423,424

03-Mar-2012

06:23

x64

Setupapi.dll

6.1.7601.21935

1,901,056

03-Mar-2012

06:28

x64

Setupapi.mof

Not applicable

3,689

10-Jun-2009

21:08

Not applicable

Wowreg32.exe

6.1.7600.16385

16,384

14-Jul-2009

01:39

x64

Setupapi.dll

6.1.7601.21935

1,667,584

03-Mar-2012

05:34

x86

Setupapi.mof

Not applicable

3,689

10-Jun-2009

21:46

Not applicable

Wowreg32.exe

6.1.7600.16385

14,336

13-Jul-2009

23:16

x86

For all supported IA-64–based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Crypt32.dll

6.1.7601.21935

2,662,912

03-Mar-2012

05:20

IA-64

Cryptsvc.dll

6.1.7601.21935

386,048

03-Mar-2012

05:20

IA-64

Drvstore.dll

6.1.7601.21935

742,400

03-Mar-2012

05:21

IA-64

Setupapi.dll

6.1.7601.21935

2,768,384

03-Mar-2012

05:26

IA-64

Setupapi.mof

Not applicable

3,689

10-Jun-2009

21:13

Not applicable

Wowreg32.exe

6.1.7600.16385

28,672

14-Jul-2009

01:45

IA-64

Setupapi.dll

6.1.7601.21935

1,667,584

03-Mar-2012

05:34

x86

Setupapi.mof

Not applicable

3,689

10-Jun-2009

21:46

Not applicable

Wowreg32.exe

6.1.7600.16385

14,336

13-Jul-2009

23:16

x86

Status

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

More Information

Windows Resource Protection (WRP) has protected iSCSI support files such as Iscsilog.dll since the release of Windows 2008 R2 SP1. By definition, all protected files should be included in the VSS System Writer. However, the iSCSI files are not included in the metadata of the VSS System Writer. Because of this behavior, the VSS System Writer does not enumerate the file, and the file is not captured when you perform a system state backup. Therefore you cannot perform a complete system state backup. Additionally, if you try to restore the system by using the incomplete backup, the system may enter an unbootable or unstable state. When the issue that is described in this article occurs, neither VSS nor other components report an error condition during backup or restoration.

For more information about software update terminology, 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

For more information about in-box VSS writers, go to the following Microsoft website:

General information about in-box VSS writers

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name

Amd64_1898a9f8092fbe4b39a43ca7a8f455d1_31bf3856ad364e35_6.1.7601.21935_none_f2750e4c2b0c7c09.manifest

File version

Not applicable

File size

700

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_68dd44566ea91ea5776a895efdee7fda_31bf3856ad364e35_6.1.7601.21935_none_96962ebaf67999e8.manifest

File version

Not applicable

File size

1,045

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_6d19fa797167339a8fab8a02cf7d1762_31bf3856ad364e35_6.1.7601.21935_none_bd380c53c1c77f3e.manifest

File version

Not applicable

File size

1,040

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_77e00dd53e829f994fb24f998da345ed_31bf3856ad364e35_6.1.7601.21935_none_8160730ce57c9d51.manifest

File version

Not applicable

File size

1,049

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_b9b34b88aa1bdbc3f627fa229f87ccae_31bf3856ad364e35_6.1.7601.21935_none_eabc66ec02214325.manifest

File version

Not applicable

File size

700

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_c87ceb024a7e15b6fe2ff3cd5bb7e0a7_31bf3856ad364e35_6.1.7601.21935_none_f8499db7b4c03d61.manifest

File version

Not applicable

File size

1,042

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_d315cd83dd0b7b9aa876b7f6f5953f74_31bf3856ad364e35_6.1.7601.21935_none_79968c3e2bb68b7a.manifest

File version

Not applicable

File size

698

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_f9c4ea6d370f4c201fa0fb90ea595f06_31bf3856ad364e35_6.1.7601.21935_none_b6441dd9e8d1f70b.manifest

File version

Not applicable

File size

1,736

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Amd64_microsoft-windows-crypt32-dll_31bf3856ad364e35_6.1.7601.21935_none_ba0aca3a0da03993.manifest

File version

Not applicable

File size

2,747

Date (UTC)

03-Mar-2012

Time (UTC)

23:05

Platform

Not applicable

File name

Amd64_microsoft-windows-cryptsvc-dll_31bf3856ad364e35_6.1.7601.21935_none_d49aa1c2ca9bc0a2.manifest

File version

Not applicable

File size

2,393

Date (UTC)

03-Mar-2012

Time (UTC)

23:07

Platform

Not applicable

File name

Amd64_microsoft-windows-drvstore_31bf3856ad364e35_6.1.7601.21935_none_4f8f5d897351a042.manifest

File version

Not applicable

File size

3,194

Date (UTC)

03-Mar-2012

Time (UTC)

23:03

Platform

Not applicable

File name

Amd64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7601.21935_none_9390620ef60a4d0e.manifest

File version

Not applicable

File size

7,908

Date (UTC)

06-Mar-2012

Time (UTC)

06:21

Platform

Not applicable

File name

Wow64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7601.21935_none_9de50c612a6b0f09.manifest

File version

Not applicable

File size

7,914

Date (UTC)

06-Mar-2012

Time (UTC)

06:21

Platform

Not applicable

Additional files for all supported IA-64–based versions of Windows Server 2008 R2

File name

Ia64_6187b7599fb677680d1abb51addfb3ae_31bf3856ad364e35_6.1.7601.21935_none_0461827f04e94fba.manifest

File version

Not applicable

File size

1,038

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Ia64_a52852770e95241cf69330330bc964ef_31bf3856ad364e35_6.1.7601.21935_none_afd69e06cc03886a.manifest

File version

Not applicable

File size

1,040

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Ia64_f641ee425eebfd1af2d23062f8c10a36_31bf3856ad364e35_6.1.7601.21935_none_a04339f8fbd62337.manifest

File version

Not applicable

File size

1,733

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Ia64_microsoft-windows-crypt32-dll_31bf3856ad364e35_6.1.7601.21935_none_5dedd2ac5540d159.manifest

File version

Not applicable

File size

2,745

Date (UTC)

03-Mar-2012

Time (UTC)

06:48

Platform

Not applicable

File name

Ia64_microsoft-windows-cryptsvc-dll_31bf3856ad364e35_6.1.7601.21935_none_787daa35123c5868.manifest

File version

Not applicable

File size

2,391

Date (UTC)

03-Mar-2012

Time (UTC)

06:49

Platform

Not applicable

File name

Ia64_microsoft-windows-drvstore_31bf3856ad364e35_6.1.7601.21935_none_f37265fbbaf23808.manifest

File version

Not applicable

File size

3,192

Date (UTC)

03-Mar-2012

Time (UTC)

06:46

Platform

Not applicable

File name

Ia64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7601.21935_none_37736a813daae4d4.manifest

File version

Not applicable

File size

7,906

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Wow64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7601.21935_none_9de50c612a6b0f09.manifest

File version

Not applicable

File size

7,914

Date (UTC)

06-Mar-2012

Time (UTC)

05:53

Platform

Not applicable

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×