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Re: "Class A Data Center"
On Wed, Sep 24, 2003 at 03:06:30PM -0400, firstname.lastname@example.org said: > On Wed, 24 Sep 2003, Scott Francis wrote: > > > 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.). > > > > This ringing a bell for anyone else? > > 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). -- Scott Francis || darkuncle (at) darkuncle (dot) net illum oportet crescere me autem minui