[HH] Figured I would post this question here...

[Patrick Shields]

Kurt,
   Have you actually measured 12A of power draw on these servers?  That
would be the current draw if your power supplies were maxed out, but you
almost never push them that hard.  If you're actual draw is down around 8A
you can definitely safely put 2 on one circuit.  The hack safety for this
would be if you plug each of the power distribution units into a 20A
circuit.  If you pull too much the breaker should stop you before you blow
up anything on the distribution unit.
    I've seen tricks for this done with DC current applications (splitting
the current between multiple FETs, etc) using small resistors to make sure
the current mostly distributes evenly.  But I can't image that being safe
for AC.  Especially since if you plugged into 2 AC circuits you'd have to
make sure they're on the same phase!  Else bonding would effectively be
shorting 2 phases (or 2 halves of a single phase) together.

Good Luck,
Patrick

On Fri, Oct 30, 2015 at 10:04 AM Kurt L Keville <kkeville at mit.edu> wrote:

> Yeah, the run rules won’t even allow us go 75% of the rated capacity…
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