Poor performance when you transfer many small files on a computer that is running Windows 7 or Windows Server 2008 R2

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Article ID: 981208 - View products that this article applies to.
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SYMPTOMS

You have a computer that is running Windows 7 or Windows Server 2008 R2. When you transfer many files that are less than 4 kilobytes (KB), you experience poor performance on the computer.

Note This issue happens if the file transfer occurs on a native 4 kilobyte (KB) sector drive.

CAUSE

During a file transfer, the extending write for the file does not end on a sector boundary of the drive. Therefore, the rest of the sector is filled up with "0," even if the end of the file is set to the correct value. This behavior causes poor performance on the native 4 kilobyte (KB) sector drive.

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 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.

Prerequisites

No prerequisites are required.

Restart requirement

You may have to 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 7 and 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 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 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Ntfs.sys6.1.7600.165511,210,76013-Mar-201007:35x86
Ntfs.sys6.1.7600.206671,210,25613-Mar-201007:16x86
Storport.sys6.1.7600.16551146,32013-Mar-201007:35x86
Storport.sys6.1.7600.20667148,88013-Mar-201007:17x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Ntfs.sys6.1.7600.165511,657,23213-Mar-201007:53x64
Ntfs.sys6.1.7600.206671,685,89613-Mar-201008:00x64
Storport.sys6.1.7600.16551187,28013-Mar-201007:54x64
Storport.sys6.1.7600.20667187,78413-Mar-201008:00x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Ntfs.sys6.1.7600.165513,550,60013-Mar-201006:39IA-64
Ntfs.sys6.1.7600.206673,550,60013-Mar-201006:42IA-64
Storport.sys6.1.7600.16551435,08813-Mar-201006:39IA-64
Storport.sys6.1.7600.20667429,96013-Mar-201006:42IA-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 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 Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameX86_2014c993114b41aa45f9df496992d241_31bf3856ad364e35_6.1.7600.20667_none_cb0df38f949135c0.manifest
File version
File size692
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameX86_a548142d9704b08ed5a30a0f2c20eaa2_31bf3856ad364e35_6.1.7600.16551_none_f7accc04be808043.manifest
File version
File size696
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameX86_e42c5cc680c7ebc8ad71f30464f173cc_31bf3856ad364e35_6.1.7600.20667_none_358ec253a47b514e.manifest
File version
File size696
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameX86_fb1a04dfdf4e3fbc66b9742c9aa8e30e_31bf3856ad364e35_6.1.7600.16551_none_3930847ffb34d211.manifest
File version
File size692
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameX86_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.16551_none_a663f2487e2a7023.manifest
File version
File size14,508
Date (UTC)13-Mar-2010
Time (UTC)08:08
PlatformNot applicable
File nameX86_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.20667_none_a6e8c0e3974ac3e8.manifest
File version
File size14,508
Date (UTC)13-Mar-2010
Time (UTC)07:46
PlatformNot applicable
File nameX86_microsoft-windows-storport_31bf3856ad364e35_6.1.7600.16551_none_276f1734916dbc63.manifest
File version
File size14,132
Date (UTC)13-Mar-2010
Time (UTC)08:04
PlatformNot applicable
File nameX86_microsoft-windows-storport_31bf3856ad364e35_6.1.7600.20667_none_27f3e5cfaa8e1028.manifest
File version
File size15,725
Date (UTC)13-Mar-2010
Time (UTC)07:42
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_32b8443c81fb047b38035764c231d77d_31bf3856ad364e35_6.1.7600.16551_none_b6e89ff1d53246d1.manifest
File version
File size696
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameAmd64_bef1d8175b9c932df756f0b20a311d2d_31bf3856ad364e35_6.1.7600.20667_none_4bef6406d7cda41d.manifest
File version
File size696
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameAmd64_ea7fab36d4917f8d50d5ef1ec4b97e0e_31bf3856ad364e35_6.1.7600.16551_none_f606eed640740cb9.manifest
File version
File size700
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameAmd64_eeadc3d91b89d8be2d1c6097c2c10cfc_31bf3856ad364e35_6.1.7600.20667_none_12099e9c4c894654.manifest
File version
File size700
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameAmd64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.16551_none_02828dcc3687e159.manifest
File version
File size14,514
Date (UTC)13-Mar-2010
Time (UTC)09:03
PlatformNot applicable
File nameAmd64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.20667_none_03075c674fa8351e.manifest
File version
File size14,514
Date (UTC)13-Mar-2010
Time (UTC)08:50
PlatformNot applicable
File nameAmd64_microsoft-windows-storport_31bf3856ad364e35_6.1.7600.16551_none_838db2b849cb2d99.manifest
File version
File size14,134
Date (UTC)13-Mar-2010
Time (UTC)08:57
PlatformNot applicable
File nameAmd64_microsoft-windows-storport_31bf3856ad364e35_6.1.7600.20667_none_8412815362eb815e.manifest
File version
File size15,727
Date (UTC)13-Mar-2010
Time (UTC)08:45
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_2d1cf6850202be6de47329da6f98c9e6_31bf3856ad364e35_6.1.7600.16551_none_767bbe2d70efcece.manifest
File version
File size694
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameIa64_560e11b65bcc26d0be1505e6443c14ca_31bf3856ad364e35_6.1.7600.16551_none_55e6f062220999e0.manifest
File version
File size698
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameIa64_655e4cbba8cfad067a0337a30b8a743c_31bf3856ad364e35_6.1.7600.20667_none_f2a448d2a16849ce.manifest
File version
File size694
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameIa64_afb09d21ef09ffa395470189c0fe30df_31bf3856ad364e35_6.1.7600.20667_none_6d6e6bf6a952ee09.manifest
File version
File size698
Date (UTC)13-Mar-2010
Time (UTC)11:01
PlatformNot applicable
File nameIa64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.16551_none_a665963e7e28791f.manifest
File version
File size14,511
Date (UTC)13-Mar-2010
Time (UTC)09:03
PlatformNot applicable
File nameIa64_microsoft-windows-ntfs_31bf3856ad364e35_6.1.7600.20667_none_a6ea64d99748cce4.manifest
File version
File size14,511
Date (UTC)13-Mar-2010
Time (UTC)08:45
PlatformNot applicable
File nameIa64_microsoft-windows-storport_31bf3856ad364e35_6.1.7600.16551_none_2770bb2a916bc55f.manifest
File version
File size14,133
Date (UTC)13-Mar-2010
Time (UTC)09:00
PlatformNot applicable
File nameIa64_microsoft-windows-storport_31bf3856ad364e35_6.1.7600.20667_none_27f589c5aa8c1924.manifest
File version
File size15,726
Date (UTC)13-Mar-2010
Time (UTC)08:42
PlatformNot applicable

Properties

Article ID: 981208 - Last Review: April 20, 2010 - Revision: 1.0
APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
  • Windows HPC Server 2008 R2
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbexpertiseinter kbsurveynew kbqfe kbautohotfix kbhotfixserver kbfix KB981208

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