Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool tests system memory levels to verify that they are within an acceptable range. If the Exchange Server Analyzer finds that any of the Performance Monitor (Perfmon) kernel memory counters are below appropriate levels, the Exchange Server Analyzer displays a troubleshooting message.

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 maintain a healthy Exchange deployment, make sure that you monitor the kernel memory.

Optimizing kernel memory can be a complex task. For detailed information about kernel memory usage, including troubleshooting information, see Troubleshooting Exchange Server 2003 Performance (http://go.microsoft.com/fwlink/?LinkId=47588). One consideration for freeing up server resources is to look at the user mailbox load on the server. Consider moving user mailboxes to another server to reduce server load and see if the problem stops. For more information, see Move User Mailboxes to Another Server.

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