nanog mailing list archives

Re: MAE NY?


From: "Chris Mauritz" <chrism () raremedium com>
Date: Thu, 8 Oct 1998 09:14:06 -0400

The real problem here is that Telehouse either doesn't want or doesn't have
the ability to give you floor tiles that have holes cut to your spec.  They
basically rummage round and get you a tile with a random-sized hole in it.
If you're lucky, you get a big hole in the middle.  If you're not, you get
one just big enough to fit your hand through (and risk the jaggies on the
bottom) at some random spot on the tile.  I've thought about keeping a
sawzall in cabinets there just for the purpose of "customizing floor tiles"
in the wee hours of the night.  8-)

C

Chris Mauritz
Technical Manager, Systems Administration
Rare Medium, Inc.
chrism () raremedium com

-----Original Message-----
From: Geoff Lisk <glisk () digisle net>
To: TTSG <ttsg () ttsg com>; <alex () nac net>
Cc: <rpa () insnet net>; <amb () gxn net>; <randy () psg com>;
<redhead () cloudy lightning net>; <nanog () merit edu>
Date: Wednesday, October 07, 1998 11:10 AM
Subject: Re: MAE NY?


I've had really good luck with a very large hole underneath the cabinet and
a several hundred CFM fan at the top.  Telehouse has good underfloor
pressure so the larger the hole the better for the cabinet.  I haven't had
good luck putting vented tiles behind - most of our equipment vents front
to rear inside the cabinets.  My routers are very happy with the large
holes though:

card       inlet           hotpoint       exhaust
RSP(2)   18C/64F      23C/73F      21C/69F

Although after seeing the rats nest of wires in some of the cabinets I've
seen over the years it's no wonder there are hotspots - nowhere for the air
to go. ;)

-Geoff


At 08:10 PM 10/6/98 -0400, TTSG wrote:
Also make sure that there is a "vented tile" inback of your cabinets.
Not every one I see there does.  Just put in a work order to the
CAC and they'll put them behind your cabinet.  This should help with the
air flow around the cabinet so the air pumped out has somewhere to go
(Or help blow into the back vents)


----------------------------------------------------------------------
Geoff Lisk                         Phone: 415-228-4170
Network Engineer          E-mail:glisk () digisle net
Digital Island                Pager: glisk () airnote net
One hop to the world...               www.digisle.net
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