Topic Last Modified: 2010-07-12

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.

To learn more about this alert, in Operations Manager, do one or more of the following:


Product Name


Product Version

14.0 (Exchange 2010)

Event ID


Event Source


Rule Path

Microsoft Exchange Server/Exchange 2010/Mailbox/Information Store

Rule Name

The Exchange store failed to start because it is out of file handles.


This event indicates that the Microsoft Exchange Information Store service has one of the following conditions:

  • A process has too many files open.

  • A process is leaking file handles.

The affected database might be dismounted or might not mount. This depends on the kind of file that is affected.

Note   Microsoft Windows uses a file handle to reference a file.

User Action

To resolve the problem, do one or more of the following:

  • Stop and restart the Exchange Information Store service from the Windows Services snap-in.

  • Look for related ESE events in the Application log. The related ESE events can give you detailed error information to help you resolve this problem.

  • If the problem persists, contact Microsoft Customer Support Services. For information about how to contact support, visit Microsoft Help and Support.

For More Information

If you are not already doing so, consider running the Exchange tools created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.