Sunday, March 15, 2009

Event ID : 12800

Issue : VM Fragmentation issue. Message conversion failed because there is not enough available memory.

Event Source: MSExchangeIS

Cause : In situations where virtual memory is heavily fragmented, message processing problems and message conversion problems may occur. Users may experience performance issues and may not be able to access their messages. Repeated occurrences of the following event in the application event log, where each occurrence is logged several seconds after the last occurrence, indicate extreme virtual memory fragmentation.This issue occurs if the attachment in the e-mail message is corrupted.

Description : Message processing failed because there is not enough available memory (<message id>).


Action Required : Run Microsoft Exchange Best Practices Analyzer (ExBPA) tool to check this issue. It is highly recommended that you restart all Exchange services to correct this issue.Use System Monitor and Performance Logs and Alerts to measure memory usage and optimize performance. You may also need to stop other running applications and remove unused files and applications from the server's disk.

Ref.Link : http://support.microsoft.com/kb/912068

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