On 06/12/2008 12:11, Justin Piszcz wrote:
As far the PSU, just btw/FYI, Velociraptors consume ~4-5 watts a piece,
These are the 2.5" drives, yes? Even then, I think that's very unlikely; they don't even claim any better than 6W operating, I think 8-10W is more likely. Even if they are running as low as 5-6W, they're so much smaller than 3.5" drives that heat could still cause problems. Can you check what temps the drives have reached, using smartctl?
my entire system used ~100-120watts with all 12 velociraptors on a 650 watt PSU (now moved into a test system).
Do you have your dozen drives on a staggered start or all at power-on? I could see 12 drives starting at once causing damage to almost any 650W PSU unless it's designed specifically for hard drive enclosures, due to the relatively enormous current draw at startup - called inrush current.
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