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Kernel memory depletion

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2007-02-15

The Microsoft Exchange Analyzer Tool queries the Win32_NTLogEvent Microsoft Windows Management Instrumentation (WMI) class to determine whether an Event 2000, Event 2019, or Event 2020 error has been logged for the SRV (server) or NCP Server source within the last 24 hours.

  • An SRV (server) Event ID 2000 indicates a server's call to a system service failed unexpectedly due to a general system kernel memory depletion.

  • An SRV Event ID 2019 indicates a depletion of the system non-paged pool memory.

  • An SRV Event ID 2020 indicates a depletion of the system paged pool memory.

If the Exchange Analyzer finds that one or more of these events has been logged within the last 24 hours, the Exchange Analyzer displays an error.

This warning indicates that the server's kernel memory is depleted and the server may be experiencing performance issues.

Microsoft Windows kernel memory consists of several memory structures, including paged and non-paged pool memory and system page table entries. These memory structures, also referred to as kernel memory, are used by the operating system to provide an environment for applications such as Exchange.

To address this issue, follow the guidance of the issue-specific Exchange Analyzer articles listed below:

In general, to maintain a healthy Exchange deployment, make sure that you regularly monitor the Exchange Server's kernel memory.

For more information about SRV Events 2000, 2019, or 2020 see the "Events and Errors Message Center: Event Details"

For more information about optimizing memory for Exchange Server, see the following Microsoft Knowledge Base articles:

 
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