[geeks] Need geek assistance

[Patrick Finnegan]

On Sunday 18 April 2010, Phil Stracchino wrote:
> On 04/18/10 10:32, Patrick Finnegan wrote:
> > On Sunday 18 April 2010, sammy ominsky wrote:
> >> Jonathan Patschke wrote:
> >> Blades suck a lot of power for the space they're in.  We get 2x20A
> >>  per rack, and at the price we'd pay for additional circuits, it's
> >>  not possible to run a 4U blade server in the rack with anything
> >>  else.  I had to quote a friend who wanted to colo one with us
> >>  $1500/month because of the power requirements.  We run a full
> >> rack of 1- and 2U servers with modern energy requirements in that
> >> same cabinet.
> >
> > ]...] Also, what rate in kWh
> > are you charging? $1500/mo works out to $2/hr, which at 3.84kW (the
> > max continuous draw you're permitted on two 120V, 20A circuits,
> > which is 80% load) is over $0.52/kWh for power and cooling, which
> > is ridiculous.
> 
> If I were to guess, I'd guess that part of the cost equation is that
>  the blade server consumes all the power available to that rack, and
>  thus he can't rent out the rest of the rack.  So he's got a 40U rack
>  sitting there with 36U empty and unusable.
> 

Out of curiosity, what 4U "blade" system is drawing 4kW of power?  A 
fully loaded 14-blade IBM Bladecenter chassis at worst can draw about 
6kW, and takes up 7-10U of space depending on what chassis you have.

Pat
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