[62967] in North American Network Operators' Group
Re: "Class A Data Center"
daemon@ATHENA.MIT.EDU (Scott Francis)
Wed Sep 24 16:08:21 2003
Date: Wed, 24 Sep 2003 12:47:15 -0700
From: Scott Francis <darkuncle@darkuncle.net>
To: Devon True <devon@noved.org>
Cc: nanog@merit.edu
Mail-Followup-To: Devon True <devon@noved.org>, nanog@merit.edu
In-Reply-To: <Pine.LNX.4.56L0.0309241505570.21873@server.noved.org>
Errors-To: owner-nanog-outgoing@merit.edu
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On Wed, Sep 24, 2003 at 03:06:30PM -0400, devon@noved.org said:
> On Wed, 24 Sep 2003, Scott Francis wrote:
>=20
> > I don't know if it qualifies as an "established standard", but ISTR that
> > Steve Bellovin had a paper about various levels of reliability in data
> > centers ... [searches] argh. I can't find it yet. Perhaps Mr. Bellovin =
can
> > refresh my memory ... the paper I'm recalling had specifications for 5 =
or so
> > different levels of reliability and redundancy in data centers (able to
> > withstand criminal attack, armed attack, conventional explosives, nucle=
ar
> > explosion, acts of God, etc.) and was interesting reading. The focus, a=
s I
> > recall, was on the level of engineering required to reach various level=
s of
> > uptime (99.9, 99.99, 99.999, etc.).
> >=20
> > This ringing a bell for anyone else?
>=20
> Do you mean <http://www.donelan.com/design/general.html>?
doh! Indeed I do mean that file. I got Bellovin and Doneland mentally
transposed for some reason. Apologies all (still thought that document was a
good read, though).
--=20
Scott Francis || darkuncle (at) darkuncle (dot) net
illum oportet crescere me autem minui
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