nanog mailing list archives

RE: Fire protection in ISPs and collocation facilities


From: Roeland Meyer <rmeyer () mhsc com>
Date: Sun, 5 Nov 2000 21:26:45 -0800


Simple rule, make sure that you're upstream and the down-stream end has more
bandwidth than the up-stream end. It's kind of the reverse of the internet.
In the event that the inflow exceeds the outflow, hit the SCRAM switch
before you fry something. This is the main reason I have it (SCRAM), but I'm
damned if I can justify it for that reason. It's a lot easier to talk about
fire. It should be left in the Fire codes.

What are the four seasons in California? Earthquake, Drought, Fire, and
Flood. You've no doubt heard about the "Oakland Hills Fire" but no one has
ever talked about the mud-slides, in the Winter following the "Oakland Hills
Fire", caused by the ground-cover being burnt off. In fact, no one hears
much about California flooding. That's because it is a natural part of the
ecology here and not as sexy as earthquakes and brush fires.

-----Original Message-----
From: Sean Donelan [mailto:sean () donelan com]
Sent: Sunday, November 05, 2000 8:58 PM
To: tme () 21rst-century com
Cc: nanog () merit edu
Subject: Re: Fire protection in ISPs and collocation facilities



On Sun, 05 November 2000, Marshall Eubanks wrote:
In Fairfax and Loudon Counties here in Virginia, fire codes require 
water for fire suppression (you can use other means, but you have to
have water). So all the co-lo and exchange facilities here have
pressurised water fire suppression. I have been surprised 
at how many 
of these do not have DRAINS for the water. 
In my real estate experience, whenever you have
the possibility of water release, you will eventually HAVE water
release. With no drains, that means you will have
to move the equipment out to get the water out...

Its a catch-22.  In Rochelle Park, a substantional amount of the
flooding entered the building through the drains and plumbing.  If
you have openings for the water to flow out, the water can also flow
in.  On the other hand, there have also been colo's (in Virginia) with
depressed/raised floors which turned into concrete pools submerging
all the data cables and power cables below the raised floor.

Do I have a solution?  No.  I've thought about building in dry sumps
and containment (i.e. like nuclear reactor buildings).  But that
has problems too.






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