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

[Ken Woods <kwoods@verio.net>]

On Wed, 8 Dec 1999, Dave Siegel wrote:

> > You take the AVERAGE power consumption of all the racks. But you
> > knew that. Or, *ahem*, I hope you did.
> 
> It should be obvious based on my case study that I don't build
> datacenters, only the network portion of them.  ;-)  I'm more an IP
> geek than a facilities geek (and gosh, I hope to stay that way!)

Oh, my bad.
Sorry.
You're "one of them"
heh heh heh.

It's all good, I've gotten to the point that you network people just
*confuse* me.  Espcially when you try to talk power and cooling and the
such.  

> I was responding to the issue of A/rack.  I still don't think
> 100A/rack is unreasonable.

As an average?  That's absurd.  See below, re: adding drops.

> At some point, your fuses for your 110VAC

(don't say fuses, they're breakers)

> whips come into play, and based on the ever increasing density of
> CPUs/rack and increasing power requirements of telecom equipment (more
> optical connections & lasers to power up/rack), going overkill is a
> good idea.

Ah, OK, Then we get into the whole discussion about RPP's and other power
distribution.  What people (and this is not a cut on you....) don't
realize is that a datacenter is not a static environment.  A properly
designed facility will make additional power drops a 10 min job.

-- 
Ken Woods
kwoods@verio.net
"Used to be a geek.  Now I'm a facilities guy."
"ANd yes, I'm *really* going to bed now"