Re: DATACENTER: Cooling and Cost Data for Web Hosting Data Centers

[hannigan@fugawi.net]

> 
> On Wed, 8 Dec 1999, W Halls wrote:
> 
> > 
> > To what specs are people designing web hosting data
> > center cooling for ? 30/60/90W/sq foot ?
> 
> Depends on the datacenter, but 4000 - 12,000 BTUs a rack depending on the
> hardware and how populated they are.

Wouldn't 100A per rack be a good number? That's what I am using, then
aggregating actual as we grow i.e. I'm not installing full load of
10 tonners everywhere, just half and adjusting as we fill an average
of 50-80Ksq.f

> > Also, is there a pointer to some benchmark data for
> > the construction costs for these data centers ? I have
> > seen estimates from 300$/sq foot all the way to
> > $1000/sq foot with the variation based mostly on power
> > and cooling
> 
> No, it can be all over depending on how you build your datacenter.

Yeah no shit. If you build like Level 3 does, your spending millions.
If you build like we are, you're still spending millions but about 2/3
of what Level 3 spent. I haven't seen an above.net space yet, but I hear
it's "like" Level 3.

> > What net square foot of raised floor to overall gross
> > square foot ratios are people seeing ? i.e how many
> > cabinets or racks per square foot ?
> 
> Well because of the size of the racks or cabinets, you can't get one in a
> square foot. :-)

You can get a chatsworth 7'x19" in a square foot. :-)