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RE: Re: Datacenter Classification
Well, well, looks like the "meltdown" didn't quite kill off the more expert
experts in the datacenter and otherwise larger global data-handling
industries. Happy New Year, guys and gals!
Having spent a larger than should have been part of my last decade in the
datacenter, computer center, and other such mission critical type facilities
and infrastructure projects, I would have to agree pretty much across the
board with Roeland. A Class "A" datacenter, by most accounts and without
going directly to a published standard as the Holy Grail, is probably best
determined by a Reliability Index (number of those elusive 9's everybody
chases) as a result of meeting some performance criteria laid down by an
Owner (like Beenu). If the end result can give a consistent high five-9's,
it's usually considered a Class "A" design.
What seems to be the most forgotten, though, is the need to address ALL
areas of the installation, not just the physical structure and the
power/HVAC systems. Such things as architectural and physical security,
fire suppression and backup fire water, redundancy in systems work as
defined along the lines of "N + something from 1 on up, adjacency to
thoroughfares, adjacency to high voltage lines and in what orientation to
the buildings, relative position on the local diesel fuel deliverer's
importance list, airport flight path issues, grounding and lightning
protection systems, etc., etc., etc.
As one can see, probably the soundest advice I've seen so far is to get a
professional and his/her team involved that is used to advising and
designing to all these parameters. AND --- of course, be ready to shell out
exponentially increasing sums of greenbacks as you climb the "ladder of
9's".
Dan
-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Roeland Meyer
Sent: Tuesday, January 08, 2002 7:11 PM
To: 'Sean Donelan'; Martin Hannigan
Cc: [email protected]
Subject: RE: Re: Datacenter Classification
|> From: Sean Donelan [mailto:[email protected]]
|> Sent: Tuesday, January 08, 2002 5:52 PM
|>
|> On Tue, 8 Jan 2002, Martin Hannigan wrote:
|> > Not being fececious, but can you point me at these? I
|> always though a CO/DC
|> > built TO NEBS and Bellcore was "Class A" "Tier 1" "Tier IV" etc.
|>
|> Not really, why do you think you need to buy special
|> computers for the
|> CO environment? A data center has a much more controlled environment
|> than you'll find in a typical CO.
<hehe> Yeah, they're warmer. All that empty concrete encapsulated space gets
damned cold. Older COs have a lot of empty space where the frames used to be
mounted and they were mostly concrete buildings. The 5ESS' look lonely in
there. Even the battery pile doesn't look as impressive.
As others have said earlier. There is no set standard taxonomy as to what
constitutes a class A datacenter. My definition includes multi-homing, 5-day
backup power, and NEBs, as a start ... finishing off with a five-nines plus
track-record.