[94562] in North American Network Operators' Group
Re: Colocation in the US.
daemon@ATHENA.MIT.EDU (Alexander Harrowell)
Thu Jan 25 10:19:05 2007
Date: Thu, 25 Jan 2007 15:13:09 +0000
From: "Alexander Harrowell" <a.harrowell@gmail.com>
To: "Paul Vixie" <paul@vix.com>
Cc: nanog@merit.edu
In-Reply-To: <24308.1169736261@sa.vix.com>
Errors-To: owner-nanog@merit.edu
On 1/25/07, Paul Vixie <paul@vix.com> wrote:
>
> > How long before we rediscover the smokestack? After all, a colo is an
> > industrial facility. A cellar beneath, a tall stack on top, and let physics
> > do the rest.
>
> odd that you should say that. when building out in a warehouse with 28 foot
> ceilings, i've just spec'd raised floor (which i usually hate, but it's safe
> if you screw all the tiles down) with horizontal cold air input, and return
> air to be taken from the ceiling level. i agree that it would be lovely to
> just vent the hot air straight out and pull all new air rather than just
> make up air from some kind of ground-level outside source... but then i'd
> have to run the dehumidifier on a 100% duty cycle. so it's 20% make up air
> like usual. but i agree, use the physics. convected air can gather speed,
> and i'd rather pull it down than suck it up. woefully do i recall the times
> i've built out under t-bar. hot aisles, cold aisles. gack.
>
Seriously - all those big old mills that got turned into posh
apartments for the CEO's son. Eight floors of data centre and a 200
foot high stack, and usually an undercroft as the cold-source. And
usually loads of conduit everywhere for the cat5 and power. (In the UK
a lot of them are next to a canal, but I doubt greens would let you
get away with dumping hot water.)
