image Our very own Steve Rachiu recently started a new series of posts based on his highly touted MMS 2009 presentation so if you were unlucky enough to have missed it the first time around here’s your chance to get caught up.

Part 1 starts out with a basic discussion of Unit Monitors and how they differ from Rules, for example:

“…rules and monitors are actually very different things.  There are two major things to understand about rules compared to monitors.  Rules have zero impact on measuring the health of the object being monitored.  In addition, rules can collect data and monitors don’t.  An example is instructive.  If you have a need to both collect performance data and also have the measurement of the same performance data impact the total health of the monitored object, you need both a rule and a monitor.  Why?  Again, monitors don’t collect anything – they just evaluate the data live and reflect back what is found in terms of health state changes.  Rules collect data but have no impact on health state.  So, in this example scenario, you need both…”

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J.C. Hornbeck | Manageability Knowledge Engineer