No space left on disk Review MSExchangeIS event 9512


Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Operations Manager 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 Operator Console, select this alert, and then click the Properties tab.

  • Review all events that have been logged that meet the criteria of this Operations Manager alert. From the 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

Critical Error

MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Mailbox/Information Store

MOM Rule Name

No space left on disk Review MSExchangeIS event 9512.


This event indicates that the Microsoft® Exchange Information Store service that is using the Extensible Storage Engine (ESE) was writing to a database file when it found that there was no free disk space. This event will cause the database to dismount. Users who have mailboxes on the dismounted database will be unable to send or receive e-mail.

User Action

To resolve this issue, follow one or more of these steps:

  • Try to remove unnecessary files to free disk space.

  • Look for related ESE events in the Application log. The related ESE events will specify the database that is full and the disk volume where the database resides.

  • Run the Database Recovery Management tool to obtain more information and help with solving the issue. The tool is part of the Exchange Troubleshooting Assistant and can be found in the Toolbox of the Exchange Management Console.

  • Contact Product Support Services if either of the following conditions is true:

    • The issue persists.

    • You are not sure what files to remove.

    For information about how to contact support, visit Microsoft Help and Support.

For More Information

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 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.