What is RAID!!!????

Okay, now this question has to be one of the most repetitive questions i've seen in the forums. I know the site is mainly game oriented but as new motherboards come out with RAID capabilities, more people are leaning towards RAID systems. How bout writing up a review on the main types of RAID or all types of RAID configs for people to read instead of repeating threads.

Just explaining the differences between them, and a few benchmarks on how much faster they are. I haven't seen a benchmark to show reliability but if there is one out there, that'd be good too. I know a lot of people here already know what RAID is but i doubt anyone has had the time or money to test out all the different configurations. Just a suggestion.

Omes

http://www.pcmech.com/show/harddrive/296/