Exchange 2010 Correlation Engine

Creating overrides for the Exchange Correlation engine is not easy. Here is a link that shows you how to correctly change the monitors or rules.

http://social.technet.microsoft.com/Forums/en-US/operationsmanagermgmtpacks/thread/28ffced4-7dd9-4731-a8e9-ee0fc2130f47

Often the rules or monitors are using numerical values for severity and priority. Here is an article that shows what the numerical values are.

http://blogs.msdn.com/b/mariussutara/archive/2007/12/17/alert-severity-and-priority-use-with-override.aspx

TMG 2010 Allows SCOM Agent Communication

Here is an article that explains the steps that are needed to allow SCOM Agent communication from a Forefront TMG 2010 server to its SCOM management server. 

http://oostdam.info/index.php/sectie-blog/249-scom-install-agent-on-forefront-tmg-server

SCOM Agent Health Service

Here is a good article that explains the health service of a SCOM Agent and what happens when there is a health service failure.

http://blogs.technet.com/b/jonathanalmquist/archive/2010/01/11/health-service-heartbeat-failure-diagnostics-and-recoveries.aspx

DNS 2008 MP Resolution Time Alerts

A client of mine was constantly receiving Resolution Time alerts from DNS 2008 MP in SCOM 2007 R2.  I ran across this article that provides explanation of the monitor and how to tweak it.  At my client we decided to set the threshold to 4 seconds because of the baseline set for all of the DNS servers using Local Resolution Time.

http://blogs.technet.com/b/kevinholman/archive/2009/02/24/dns-mp-noisy-resolution-time-alerts-and-how-to-deal-with-them.aspx