[62963] in North American Network Operators' Group
Re: "Class A Data Center"
daemon@ATHENA.MIT.EDU (Steven M. Bellovin)
Wed Sep 24 15:35:56 2003
From: "Steven M. Bellovin" <smb@research.att.com>
To: Scott Francis <darkuncle@darkuncle.net>
Cc: Bob German <bobgerman@irides.com>,
"'Jay Hennigan'" <jay@west.net>, nanog@merit.edu
In-Reply-To: Your message of "Wed, 24 Sep 2003 11:20:25 PDT."
<20030924182025.GA87443@darkuncle.net>
Date: Wed, 24 Sep 2003 15:34:56 -0400
Errors-To: owner-nanog-outgoing@merit.edu
In message <20030924182025.GA87443@darkuncle.net>, Scott Francis writes:
>
>
>
>On Thu, Sep 18, 2003 at 03:58:31PM -0400, bobgerman@irides.com said:
>>=20
>>=20
>> This is the assumption I have come to as well. Are there any
>> established standards for enterprise datacenters at all, aside from the
>> obvious, N+1 redundant everything, diverse paths, etc.?
>
>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, nuclear
>explosion, acts of God, etc.) and was interesting reading. The focus, as I
>recall, was on the level of engineering required to reach various levels of
>uptime (99.9, 99.99, 99.999, etc.).
Not me.
--Steve Bellovin, http://www.research.att.com/~smb
