ESE Log Bytes Write/sec - Yellow(>5 MB per second sustained for 15 minutes) - Mailbox


Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Operations Manager includes a performance data collection engine that is used to query performance counter objects on computers that are running Exchange Server 2007. For this Operations Manager rule, data is collected using the performance counter specified in the Details table.

To review the value of the performance counter that generated this alert, in the Operator Console, select this alert, and then click the Properties tab.


Product Name


Product Version

8.0 (Exchange Server 2007)

Event Source

MSExchange Database ==> Instances

Counter Name

Log Bytes Write/sec

Instance Name


Sample Interval (in seconds)


Server Role

Ex. Mailbox

Warning Threshold


Critical Error Threshold


MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Mailbox/Information Store

MOM Rule Name

ESE Log Bytes Write/sec - Yellow(>5 MB per second sustained for 15 minutes) - Mailbox


The Log Bytes Write/sec performance counter indicates the rate at which bytes are written to the log file.

This alert indicates that the bytes have been written to the log file at a rate of at least 5 MB per second, sustained for at least 15 minutes. This alert usually indicates that you have a message looping.

User Action

To resolve this error, do the following:

  • Review the Application log for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this error.

If you are having difficulty resolving the issue, contact Microsoft Product Support. For information about contacting support, visit the Contact Us page of the Microsoft Help and Support Web site.

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.

For More Information

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Microsoft Help and Support Web site.