Phillip Berry wrote:
Hardware raid controller for both options, but I'm not sure what brand (yet).
The reason you won't ever find a good general answer to this question is that it's so close that you need to know the exact controller cards and the disks used in each situation to have any hope of guessing which will work out better. Sometimes you get lucky and one case has a know poor performer, so you just get the other. Next tiebreak is management utilites, which count for a lot more than a small performance difference. If both are good on both of those, then maybe it's worth the trouble to model each possibility against your workload, with accurate numbers to substitute into any such guess.
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