Article ID: 2608659
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Symptoms

This is an update rollup for the Single Instance Storage (SIS) component in Windows Storage Server 2008 R2. This update rollup resolves the following issues:

Issue 1

When data is written to a file which resides on a SIS volume of a remote server and an application on the remote server reads the file by using file mapping, the new data may be lost. An antivirus application is an example application which may read files locally by using file mapping.

Issue 2
When a file is compressed or decompressed on a SIS volume and the file was previously changed and the modification was interrupted or failed, the file may be corrupted.

Issue 3

After a file is truncated to empty size on a SIS volume by using the CreateFile function together with the TRUNCATE_EXISTING creation disposition:
  • If the file is read without reopening it, the system may return data as if the file was not truncated. For example, consider a situation where the original file is 2 megabytes (MB) and is opened by using the CreateFile function together with the TRUNCATE_EXISTING creation disposition. When the first 1 MB is read, the system may return the original 1 MB of content even though the file size is zero.
  • If the file is written without reopening it, the system may behave as if the file was not truncated. For example, consider a situation where the original file is 2 MB and is opened by using the CreateFile function together with the TRUNCATE_EXISTING creation disposition. When the first 1 MB is written with new data, the new file may be 2 MB with the first 1 MB of new data and second 1 MB of original data.

Issue 4
When a file is opened on a SIS volume that uses file system transaction and the file is compressed by using NTFS compression, the file may be corrupted.

Important

Windows Storage Server products are OEM-only products. OEMs must set up a contract with Microsoft Licensing through their OEM account managers before the OEMs can access update packages for Windows Storage Server. This update rollup is distributed only through Microsoft OEM Online. Send questions about this update package to the following email address:
naspm@microsoft.com

Cause

Issue 1
This issue occurs because the SIS filter does not filter the fast I/O operations or the memory descriptor list (MDL) operations which are used by the Server Message Block (SMB) protocol.

Issue 2
This issue occurs because certain read operations that originate from NTFS for compression or decompression on SIS-managed files are invisible to the SIS filter. This prevents the SIS filter from returning the actual file data and results in file corruption.

Issue 3
This issue occurs because the SIS filter does not filter the FileAllocationInformation information class of IRP_MJ_SET_INFORMATION requests.

Issue 4
This issue occurs because of a timing issue. When the SIS filter restores a SIS-managed file to a normal file because of a file system transaction, the NTFS.sys driver performs compression on the file at the same time. In this scenario, some read operations that originate from NTFS for compression are invisible to the SIS filter. This prevents the SIS filter from returning the actual file data and results in file corruption.

Resolution

Note We recommend that you to apply this hotfix package on all Windows Storage servers that have SIS enabled to avoid potential file corruption.

Update information

How to obtain this update

This update is available from the Microsoft Update Web site:
http://update.microsoft.com

Prerequisites

To apply this update, you must be running one of the following operating systems:
  • Windows Storage Server 2008 R2
  • Windows Storage Server 2008 R2 Service Pack 1 (SP1)

Registry information

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

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.

File information

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 Storage Server 2008 R2 file information notes
  • 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 16xxxWindows Storage Server 2008 R2RTMGDR
    6.1.760 0 . 20xxxWindows Storage Server 2008 R2RTMLDR
    6.1.760 1 . 17xxxWindows Storage Server 2008 R2SP1GDR
    6.1.760 1 . 21xxxWindows Storage Server 2008 R2SP1LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • 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 Storage 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 Storage Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Sisss.sys6.1.7600.16879137,58407-Sep-201105:39x64
Sisss.sys6.1.7600.21047137,58407-Sep-201105:30x64
Sisss.sys6.1.7601.17686137,58407-Sep-201105:43x64
Sisss.sys6.1.7601.21812137,58407-Sep-201107:04x64
Sisbkup.dll6.1.7600.1687924,06407-Sep-201105:35x64
Sisbkup.dll6.1.7600.2104724,06407-Sep-201105:28x64
Sisbkup.dll6.1.7601.1768624,06407-Sep-201105:39x64
Sisbkup.dll6.1.7601.2181224,06407-Sep-201106:41x64
Sisbkup.dll6.1.7600.1687919,45607-Sep-201104:42x86
Sisbkup.dll6.1.7600.2104719,45607-Sep-201104:30x86
Sisbkup.dll6.1.7601.1768619,45607-Sep-201104:30x86
Sisbkup.dll6.1.7601.2181219,45607-Sep-201106:16x86

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:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for for Windows Storage Server 2008 R2

Additional files for all supported x64-based versions of Windows Storage Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_1083eb6b5fc054cca7e5d38efe162d1a_31bf3856ad364e35_6.1.7601.21812_none_b6152e9a694a98aa.manifest
File versionNot applicable
File size717
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_1480645bb8760e7f5df800e1f24fd7b6_31bf3856ad364e35_6.1.7601.21812_none_325e7b0aed79e029.manifest
File versionNot applicable
File size1,038
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_26bfa0447e274ee95df6816b5fd2c731_31bf3856ad364e35_6.1.7600.21047_none_f8dada79b77c9515.manifest
File versionNot applicable
File size699
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_292142b0d95803a7fe7ca465dd37aae7_31bf3856ad364e35_6.1.7600.16879_none_354f2004d38223c4.manifest
File versionNot applicable
File size699
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_3b25bfb58531e273c37d478710d034f4_31bf3856ad364e35_6.1.7601.21812_none_4564bca303975592.manifest
File versionNot applicable
File size697
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_3f9b838fd52ae35c332ad1afbd9855d4_31bf3856ad364e35_6.1.7601.17686_none_bf8b9178a7dadfd3.manifest
File versionNot applicable
File size699
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_5a0598a4359e7afce196dbb095109723_31bf3856ad364e35_6.1.7600.21047_none_c7d98282ddd73054.manifest
File versionNot applicable
File size697
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_5fbf58127e8ebf1f333c5b81e3ece41b_31bf3856ad364e35_6.1.7601.17686_none_103ec5adfc1df2cf.manifest
File versionNot applicable
File size1,038
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_860470b712ee785e60c5b71c4756f422_31bf3856ad364e35_6.1.7601.17686_none_637b75ad263b5e19.manifest
File versionNot applicable
File size717
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_86383e96b6ffbbc432b9662e5748861a_31bf3856ad364e35_6.1.7600.21047_none_b5301128cd3f0651.manifest
File versionNot applicable
File size717
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_9c47d29ea69a32fb8626e368d98061b3_31bf3856ad364e35_6.1.7600.16879_none_75f9d9c1dce21ac8.manifest
File versionNot applicable
File size717
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_9d7654e3f6a93433637accc6a330b068_31bf3856ad364e35_6.1.7600.21047_none_781a3fccbffa05f4.manifest
File versionNot applicable
File size1,038
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_c78f4918d3687e1a6e20c336981c91e6_31bf3856ad364e35_6.1.7600.16879_none_4e822190c6ba7e15.manifest
File versionNot applicable
File size697
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_e58af6bb87451c5682fff9ce74278260_31bf3856ad364e35_6.1.7600.16879_none_8f3b9480cfa32e2f.manifest
File versionNot applicable
File size1,038
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_fabfe07191a82b14baefeebfb9e8a279_31bf3856ad364e35_6.1.7601.17686_none_5727a3ccfc59051f.manifest
File versionNot applicable
File size697
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_fe882bf72519392a5320386643ad27df_31bf3856ad364e35_6.1.7601.21812_none_d71f599dab25a9b8.manifest
File versionNot applicable
File size699
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameAmd64_microsoft-windows-s..lter-storage-server_31bf3856ad364e35_6.1.7600.16879_none_00cc0c146331eb53.manifest
File versionNot applicable
File size8,578
Date (UTC)07-Sep-2011
Time (UTC)06:08
PlatformNot applicable
File nameAmd64_microsoft-windows-s..lter-storage-server_31bf3856ad364e35_6.1.7600.21047_none_0173f0317c3937de.manifest
File versionNot applicable
File size8,578
Date (UTC)07-Sep-2011
Time (UTC)06:05
PlatformNot applicable
File nameAmd64_microsoft-windows-s..lter-storage-server_31bf3856ad364e35_6.1.7601.17686_none_02a498506063272b.manifest
File versionNot applicable
File size8,578
Date (UTC)07-Sep-2011
Time (UTC)06:14
PlatformNot applicable
File nameAmd64_microsoft-windows-s..lter-storage-server_31bf3856ad364e35_6.1.7601.21812_none_0375e54d794b9b29.manifest
File versionNot applicable
File size8,578
Date (UTC)07-Sep-2011
Time (UTC)07:53
PlatformNot applicable
File nameAmd64_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7600.16879_none_b8eb10de77419ac4.manifest
File versionNot applicable
File size2,060
Date (UTC)07-Sep-2011
Time (UTC)06:05
PlatformNot applicable
File nameAmd64_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7600.21047_none_b992f4fb9048e74f.manifest
File versionNot applicable
File size2,060
Date (UTC)07-Sep-2011
Time (UTC)06:02
PlatformNot applicable
File nameAmd64_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7601.17686_none_bac39d1a7472d69c.manifest
File versionNot applicable
File size2,060
Date (UTC)07-Sep-2011
Time (UTC)06:12
PlatformNot applicable
File nameAmd64_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7601.21812_none_bb94ea178d5b4a9a.manifest
File versionNot applicable
File size2,060
Date (UTC)07-Sep-2011
Time (UTC)07:49
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size3,778
Date (UTC)07-Sep-2011
Time (UTC)23:38
PlatformNot applicable
File nameX86_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7600.16879_none_5ccc755abee4298e.manifest
File versionNot applicable
File size2,058
Date (UTC)07-Sep-2011
Time (UTC)05:16
PlatformNot applicable
File nameX86_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7600.21047_none_5d745977d7eb7619.manifest
File versionNot applicable
File size2,058
Date (UTC)07-Sep-2011
Time (UTC)05:22
PlatformNot applicable
File nameX86_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7601.17686_none_5ea50196bc156566.manifest
File versionNot applicable
File size2,058
Date (UTC)07-Sep-2011
Time (UTC)05:15
PlatformNot applicable
File nameX86_microsoft-windows-sisbkup_31bf3856ad364e35_6.1.7601.21812_none_5f764e93d4fdd964.manifest
File versionNot applicable
File size2,058
Date (UTC)07-Sep-2011
Time (UTC)07:25
PlatformNot applicable

Properties

Article ID: 2608659 - Last Review: December 28, 2012 - Revision: 3.0
Keywords: 
kbfix kbsurveynew kbexpertiseinter atdownload KB2608659

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