Unable to write to log file


Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Microsoft Operations Manager (MOM) monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.

To learn more about this event, do one or more of the following:

  • Review the description of the event that includes the variables specific to your environment. From the MOM Operator Console, select this alert, and then click the Properties tab.

  • Review all events that have been logged that meet the criteria of this MOM alert. From the MOM Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description.


Product Name


Product Version

8.0 (Exchange Server 2007)

Event ID


Event Source


Alert Type


MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Common Components/Extensible Storage Engine

MOM Rule Name

Unable to write to log file. The disk might be full, permissions denied, a process locked the file, or disk or hardware blocking file access. Review disk and log file, and use the Error.exe utility.

This Warning event indicates that the database engine cannot write to a log file. This event may be logged in the following circumstances:

  • The disk may be full.

  • Permissions may have been denied.

  • Another process (such as a virus scanner) may have locked the file.

  • A disk or hardware error may be preventing access to the file.

To resolve this warning, review the Application log and System log on the computer for related disk and log file errors. Use the Error.exe or Err.exe utilities to translate numerical ESE errors to their symbolic names. For information about ESE error codes, see the following Microsoft Knowledge Base articles:

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.

To review Exchange 2007 event message articles that may not be represented by Exchange 2007 MOM alerts, see the Events and Errors Message Center.

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.


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