[119015] in North American Network Operators' Group
RE: HE.net, Fremont-2 outage?
daemon@ATHENA.MIT.EDU (Alex Rubenstein)
Wed Nov 4 13:45:07 2009
From: Alex Rubenstein <alex@corp.nac.net>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Wed, 4 Nov 2009 13:44:11 -0500
In-Reply-To: <bc070d770911040800v2f881690wed00a6e15f2c6746@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> > Regardless of generator sizing issues or disparities, if the ATS fails,
> > then no amount of grid or generator power will keep the cabinets juiced=
up.
That is patently false.
Assume N+1 UPS, with each UPS module having its own ATS fed from a utility =
and emergency bus. Then you can even individually maintain each UPS module =
and ATS. Bonus and score.
And if it's a really good place, you have two of the above (2(n+1)) and eac=
h of your power cords goes to one each.
"Question everything, assume nothing, discuss all, and resolve quickly."
-- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben --
-- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
