Change in Default Behavior for SIS Groveler

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

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256986 Description of the Microsoft Windows Registry
Summary
When you install Remote Installation Service (RIS), the Single Instance Storage (SIS) service and the Single Instance Storage Groveler service are installed. By default, in versions of Windows earlier than Windows 2000 Service Pack 3 (SP3), SIS manages and grovels the whole volume where you locate the RemoteInstall folder. In Windows 2000 SP3 and later versions of Windows Server, this behavior has changed. This article discusses these changes.
More information
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After you install Windows 2000 SP3 or a later version of Windows Server, the Single Instance Storage Groveler service only grovels the path identified in the following registry key:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tftpd\Parameters\
Name: Directory
Type: REG_SZ
Value: X:\remoteinstall, where X is the drive that you specified to locate the images during the installation of RIS.

After you install Windows 2000 SP3 or a later version of Windows Server, only new files in the folder that is specified earlier (for example the RemoteInstall folder) are groveled for duplicates. Files that exist and that have been groveled on the drive remain groveled and managed by SIS.

If you install RIS after you apply Windows 2000 SP3 or install a later version of Windows Server, only the folder that is specified earlier (for example the RemoteInstall folder) is groveled by default.

You can use the following registry key to change this behavior:
HKey_Local_Machine\Software\Microsoft\Windows nt\Currentversion\Groveler\Parameters
Name: GrovelAllPaths
Type: REG_SZ
Values:
  • 0 (or not defined): only grovel Remote Installation Service (RIS) defined path on RIS defined volume.
  • 1: Grovel all paths on all volumes configured for SIS.
NOTE: Microsoft recommends that you only grovel the RemoteInstall folder. Microsoft does not recommend that you grovel paths that contain user data such as profiles, programs, or other data.

Additionally, after you install Windows 2000 SP3 or a later version of Windows Server, the SIS filter driver no longer deletes SIS reparse information in the SIS link file when the SIS common store file cannot be found. The SIS link file is the 4-kilobyte (KB) file that points to the SIS common store file, which is the actual file that resides in the SIS common store folder.

For additional information about how to troubleshoot RIS and the Groveler service, click the article numbers below to view the articles in the Microsoft Knowledge Base:
299726 A Description of the Functions of the Single Instance Storage Filter and the Groveler Service
299873 HOW TO: Uninstall Remote Installation Services and Single Instance Storage
272149 How to Exclude Directories from the Single Instance Store Groveler
263027 HOW TO: Restore a Volume That Is Managed by Single Instance Storage
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Article ID: 324447 - Last Review: 01/11/2015 04:43:42 - Revision: 6.0

Microsoft Windows Server 2003, Standard Edition (32-bit x86), Microsoft Windows Small Business Server 2003 Premium Edition, Microsoft Windows Small Business Server 2003 Standard Edition

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