Microsoft KB Archive/908371

= A Windows Server 2003-based computer may use a paging file on a system disk instead of the intended non-local paging file =

Article ID: 908371

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Datacenter x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition

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Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry



SYMPTOMS
A Microsoft Windows Server 2003-based computer may use a paging file on a system disk instead of the intended non-local paging file when the following conditions are true:
 * The non-local paging file was configured on a dynamic disk.
 * The Windows Server 2003 system disk is a basic disk.



CAUSE
This issue occurs because the dynamic disk subsystem may get into a timing problem that prevents it from correctly enumerating the available drive letters at start time. Therefore, the dynamic disk is not available for paging.



RESOLUTION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To resolve this issue, follow these steps:
 * 1) Locate and then click the following registry subkey: HKLM\SYSTEM\CurrentControlSet\Services\dmboot
 * 2) In the right-hand pane, double-click Start, and then type 0.

Note This resolution does not work for more than one computer restart because the dmboot.sys driver reads the registry entry that is listed in step 1 and is disabled (set to 0x4) again if the startup disk is not dynamic.



WORKAROUND
To work around this issue, configure the paging file on a basic disk, rather than on a dynamic disk.



MORE INFORMATION
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

175761 Dynamic versus basic storage in Windows 2000

Technical support for x64-based versions of Microsoft Windows
Your hardware manufacturer provides technical support and assistance for x64-based versions of Windows. Your hardware manufacturer provides support because an x64-based version of Windows was included with your hardware. Your hardware manufacturer might have customized the installation of Windows with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your x64-based version of Windows. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

http://www.microsoft.com/windowsxp/64bit/default.mspx

For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:

http://www.microsoft.com/windowsserver2003/64bit/x64/default.mspx

Additional query words: Winx64 Windowsx64 64bit 64-bit

Keywords: kbtshoot kbprb KB908371

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