Put the hammer away; I don’t care how much a hammer will put stress on a hard drive. Don’t be a jerk.
For those of you who know what a stress test is, unlike Smashy McBreakstuff over here, you can start in as long as you have a valid GW2 account at 3:00 p.m. EDT on Thursday, September 7th. The test should run for about two hours, so if you’re not going to be available at the time, think of it less as a preview opportunity and more as… well, a stress test. Exactly what it is, in other words. Bug reports are welcome, but you should expect the servers to be a little stressed.
Source: Official site