Microsoft KB Archive/281493

= XADM: Information Store Does Not Start with ESE Event ID 188 =

Article ID: 281493

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q281493



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
The information store may not start (even with an empty Mdbdata folder) and the following event ID may be logged:

Event ID: 188

Event Type: Error

Event Source: ESE97

Event Category: System Parameter Settings

Description:

MSExchangeIS (1956) System parameter stop clean flush threshold (1962) is less than start clean flush threshold (3270).



CAUSE
This issue can occur if the Buffer Threshold Low Percent registry key is missing or has an incorrect value (too high).



RESOLUTION
To resolve this issue, make sure that the Buffer Threshold Low Percent key exists and has a value that is equal to or less than the Buffer Threshold High Percent value.

Exchange Performance Optimizer (Perfwiz) adds two registry keys: the Buffer Threshold Low Percent key and the Buffer Threshold High Percent key. Both keys may not exist; this does not cause any issues. However, if one of these keys exists, the other key must also exist.

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

These keys are located under the following key in the registry:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Service\MsExchangeIs\ParameterSystem

The default setting for both keys is REG_DWORD: 0x3.

Keywords: kbprb KB281493

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