Topic Last Modified: 2010-02-26

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:

From the Operations Console, double-click this alert, and then click the General tab. Review the description of the alert that includes the variables specific to your environment.
From the Operations Console, double-click this alert, and then click the Alert Context tab. Review the logged events that meet the criteria of this Operations Manager alert.

Details

Product Name	Exchange
Product Version	14.0 (Exchange 2010)
Event ID	2124
Event Source	MSExchange ADAccess
Alert Type	Warning
Rule Path	Microsoft Exchange Server/Exchange 2010/Common Components/Active Directory Access
Rule Name	Couldn't find SRV records for domain controller. An SRV record may be configured incorrectly in DNS. Use Dcdiag to check domain controller and DNS health.

Explanation

This event indicates that Domain Name System (DNS) service resource (SRV) records for the specified domain controller cannot be found.

The specified domain controller won't be used by ADAccess. As long as there is sufficient capacity in suitable domain controllers, there is no mail flow interruption. However, we recommend that you investigate the issue and fix it.

This event may be caused when a DNS SRV resource record is not registered in DNS. One or more of the zones listed in the error message do not include a delegation to its child zone.

See the event description for detailed information about the cause of this event.

User Action

To resolve this event, verify that the SRV resource record for the requested domain and service type exists in DNS. Run the Dcdiag command-line tool to test domain controller health. To do this, run dcdiag /s:<Domain Controller Name> at a command prompt on the Exchange server. Use the output of Dcdiag to discover the root cause of any failures or warnings that it reports. For more information, see Dcdiag Overview at the Windows Server TechCenter.

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.