Ok – so you’ve spent months putting together a shiny new mission-critical web application, complete with multiple web servers, a few application and/or database servers. There is a load balancer in the mix or maybe you are using Microsoft NLB (Network Load Balancing). The system is nearly ready to deploy and it is time to run a load test. The first inclination is to fire up the load testing tool and throw the maximum expected load at the entire cluster. After all, there is no sense in wasting time with the smaller pieces, right? Wrong.