|Message:||%1 (%2) %3IO size mismatch on logfile %4, IO size %5 expected while returned size is %6.|
This Warning event indicates that there is an I/O size mismatch on the log file. An unexpected error was encountered while reading the file specified in the message. This warning can typically be ignored unless other symptoms occur.
No user action is generally required. However, review the Application log for other related events. If additional ESE Warning events and MSExchangeIS events are logged, review the descriptions of those events.
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.