How can I determine if my Web Application will handle anticipated traffic.

Question

Let's say I have a web site and I know how much traffic it currently attracts. Now I want to replace it with a new site and move from one hardware configuration to another.

How can I go about determining whether or not my application will support the anticipated load before hand?

Answer 1

Testing....Testing....Profiling....Testing....ohm..ohm.ohmm

Answer 2

This do the trick?

web capacity analyis tool http://support.microsoft.com/kb/231282