Q. Why do I receive an error while using Microsoft System Center Operations Manager 2007 to monitor clustered Microsoft Exchange virtual instances?

A. The typical cause for receiving errors while monitoring Exchange virtual instance is that each monitored virtual instance's DNSName is blank in the Operations Manager 2007 database MT_Computer table. To resolve the errors, first run the following query to list all the servers with blank DNSName values:

Next, use the following command to set the correct name for each server with a blank DNSName value:

Then, restart each client's Operations Manager 2007 Health Service, and the errors should be gone.

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