One of the most common question is “How do I know my server is healthy?” How can you tell if your server performance is adequate? There are some a few key counters that are good indicators of overall health from the front end server. This is by no means a comprehensive list and is not meant to identify root cause. These counters will give you the ability to do a quick check on you server health. I recommend verifying these counters on each of the servers in the pool. It’s important to understand what these counter values are when your server is healthy. A baseline is crucial to understanding what changed when the user experience is degraded.
The first counter to check on your front end server is the Processor\% Processor Time . This should be less than 80%. If it is higher, then you need to determine if you have more users connected than usual or if there has been some other change that may result in higher load.