Symptoms
Assume that you have a computer that is running Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2. You use a backup application that uses the Windows Volume Shadow Copy feature to create snapshots and read files from the snapshots. In this situation, one or more corrupted files are found in the snapshots.
Notes-
The corrupted files can be backed up by using the backup application. The corrupted files can only be noticed during a restore process.
-
The backup data of any third-party back up application can be affected. For example, NTBackup, Windows Server Backup, System Center Data Protection Manager (DPM) can be affected. Please contact your third-party backup solution manufacturer to determine whether they use the Windows Volume Shadow Copy feature to create backups.
Cause
This issue occurs because some regions in the snapshot are not protected when the original volume is changed. When the file is read from the snapshot, the file data is not consistent. Therefore, the file data becomes corrupted. When a backup is taken by using this snapshot, the corrupted file is stored later. Â
-
The initial size of the volume that you extend is a multiple of 8 GB.
-
The volume is frequently extended by multiple of 8 GB.
Note The pattern occurs in other situations too. The previous cases of corruption increase the occurrence of the pattern.
Resolution
Update information
How to obtain this update
Microsoft Update
This update is available from the following Microsoft Update website:
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Operating system |
Update |
---|---|
All supported x86-based version of Windows Server 2003 |
|
All supported x64-based version of Windows Server 2003 |
|
All supported IA-64-based versions of Windows Server 2003 |
|
All supported x86-based version of Windows Vista |
|
All supported x64-based version of Windows Vista |
|
All supported x86-based versions of Windows Server 2008 |
|
All supported x64-based versions of Windows Server 2008 |
|
All supported IA-64-based versions of Windows Server 2008 |
|
All supported x86-based versions of Windows 7 |
|
All supported x64-based versions of Windows 7 |
|
All supported x64-based versions of Windows Server 2008 R2 |
|
All supported IA-64-based versions of Windows Server 2008 R2 |
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Prerequisites
To apply this update, you must be running one of the following operation systems:
-
Windows Server 2003 Service Pack 2 (SP2)
-
Windows Vista Service Pack 2 (SP2)
-
Windows Server 2008 Service Pack 2 (SP2)
-
Windows 7
-
Windows Server 2008 R2
For more information about how to obtain a Windows Server 2003 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
889100 How to obtain the latest service pack for Windows Server 2003 For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849 How to obtain the latest service pack for Windows Server 2008 Note The fix is included in Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1. For more information about how to obtain a Windows 7 or a 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 this update, you do not have to make any changes to the registry.
Restart requirement
You must restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
File information
The global version of this update 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 2003 file information notes
-
In addition to the files that are listed in these tables, this update also installs an associated security catalog file (KB976329.cat) that is signed with a Microsoft digital signature.
File name |
File version |
File size |
Date |
Time |
Platform |
SP requirement |
---|---|---|---|---|---|---|
Volsnap.sys |
5.2.3790.5059 |
159,232 |
21-Aug-2012 |
12:54 |
x86 |
SP2 |
W03a3409.dll |
5.2.3790.4715 |
44,544 |
09-Jul-2010 |
04:25 |
x86 |
SP2 |
File name |
File version |
File size |
Date |
Time |
Platform |
SP requirement |
Service branch |
---|---|---|---|---|---|---|---|
Volsnap.sys |
5.2.3790.5059 |
317,440 |
22-Aug-2012 |
16:38 |
x64 |
SP2 |
Not applicable |
W03a3409.dll |
5.2.3790.4715 |
45,056 |
22-Aug-2012 |
16:38 |
x64 |
SP2 |
Not applicable |
Ww03a3409.dll |
5.2.3790.4715 |
44,544 |
22-Aug-2012 |
16:38 |
x86 |
SP2 |
WOW |
File name |
File version |
File size |
Date |
Time |
Platform |
SP requirement |
Service branch |
---|---|---|---|---|---|---|---|
Volsnap.sys |
5.2.3790.5059 |
496,640 |
22-Aug-2012 |
16:38 |
IA-64 |
SP2 |
Not applicable |
W03a3409.dll |
5.2.3790.4715 |
43,520 |
22-Aug-2012 |
16:38 |
IA-64 |
SP2 |
Not applicable |
Ww03a3409.dll |
5.2.3790.4715 |
44,544 |
22-Aug-2012 |
16:38 |
x86 |
SP2 |
WOW |
Windows Vista and Windows Server 2008 file information notesImportant Windows Vista updates and Windows Server 2008 updates are included in the same packages. However, only "Windows Vista" is listed on the Update Request page. To request the update package that applies to one or both operating systems, select the update that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each update 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
6.0.600
2. 22xxxWindows Vista and Windows Server 2008
SP2
LDR
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Volsnap.sys |
6.0.6002.18679 |
224,640 |
21-Aug-2012 |
11:47 |
x86 |
Volsnap.sys |
6.0.6002.22913 |
225,664 |
21-Aug-2012 |
11:47 |
x86 |
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Volsnap.sys |
6.0.6002.18679 |
267,648 |
21-Aug-2012 |
11:50 |
x64 |
Volsnap.sys |
6.0.6002.22913 |
268,160 |
21-Aug-2012 |
11:50 |
x64 |
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Volsnap.sys |
6.0.6002.18679 |
623,488 |
21-Aug-2012 |
11:44 |
IA-64 |
Volsnap.sys |
6.0.6002.22913 |
626,048 |
21-Aug-2012 |
11:44 |
IA-64 |
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 updates and Windows Server 2008 R2 updates are included in the same packages. However, updates on the Update Request page are listed under both operating systems. To request the update package that applies to one or both operating systems, select the update 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 update 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
Milestone
Service branch
6.1.760
0.17xxxWindows 7 and Windows Server 2008 R2
RTM
GDR
6.1.760
0.21xxxWindows 7 and Windows Server 2008 R2
RTM
LDR
-
GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain updates in addition to widely released fixes.
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Volsnap.sys |
6.1.7600.17122 |
245,616 |
06-Sep-2012 |
16:48 |
x86 |
Volsnap.sys |
6.1.7600.21320 |
245,616 |
06-Sep-2012 |
19:18 |
x86 |
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Volsnap.sys |
6.1.7600.17122 |
295,792 |
06-Sep-2012 |
17:38 |
x64 |
Volsnap.sys |
6.1.7600.21320 |
296,304 |
06-Sep-2012 |
20:08 |
x64 |
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Volsnap.sys |
6.1.7600.17122 |
677,232 |
06-Sep-2012 |
16:38 |
IA-64 |
Volsnap.sys |
6.1.7600.21320 |
678,256 |
06-Sep-2012 |
19:21 |
IA-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 about this issue, click the following article number to view the article in the Microsoft Knowledge Base:
976329 Error message when you run the ChkDsk.exe utility in read-only mode on a Windows-based computer: "The Volume Bitmap is incorrect" or "Error detected in index $I30 for file 5" 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 The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.