Topic Last Modified: 2010-11-12

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager includes a performance data collection engine that is used to query performance counter objects on computers running Exchange 2010. For this Operations Manager rule, data is collected by using the performance counter specified in the Details table.

To review the value of the performance counter that generated this alert, in Operations Manager, double-click this alert, and then click the General tab. Review the description of the alert that includes the variables specific to your environment.


Product Name


Product Version

14.0 (Exchange 2010)

Object Name

MSExchange Database ==> Instances

Counter Name

Log Bytes Write/sec

Sample Interval


Server Role

Ex14. Mailbox

Critical Error Threshold


Rule Path

Microsoft Exchange Server/Exchange 2010/Mailbox/Database Copy Corruption

Rule Name

The database copy is experiencing an unusually high log generation rate (bytes written/second) for a sustained period of at least 15 minutes.


This counter monitors the rate at which the database copy log is being generated based on the number of bytes that are written per second. If the generation rate is unusually high for more than 15 minutes, the database copy may be corrupted.

A database copy is your first line of defense if a failure affects the active copy of a database. Therefore, you must monitor the health and status of database copies to make sure that they will be available when they are needed.

User Action

You can view some health and status information by examining the Properties page for a database copy in the Exchange Management Console. You can also use the Get-MailboxDatabaseCopyStatus cmdlet in the Exchange Management Shell to view a variety of status information for a database copy.

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.