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Critique?



> On Wed, Feb 28, 2007 at 02:41:29PM -0500, markw at mohawksoft.com wrote:
>>
>> The Myth of Five Nines
>> http://www.mohawksoft.org/?q=node/38
>
> Multiple geographically disparate (and network-topologically,
> and power-grid) sites are indeed a requirement. They are not
> rare, however, and not necessarily budget-busting.

Come to think of it, maybe not, if you can lease in some managed site, but
they aren't that cheap.

Short of that, you have travel and so forth for deployment and upkeep, or
even a satellite office.
>
> Loathe as I am to defend Microsoft: they had two issues. The
> first is that they managed to forget to renew their domain
> registration, a procedural issue. The second was that all of
> their external DNS servers were on the same subnet.

Oh, no doubt, I wasn't trying to slam Microsoft, (Though it is something I
do enjoy) I was more pointing out that even the best funded sites have
unexpected issues. The point is that you can't plan for every eventuality.
Sooner or later you will have a failure of some kind.


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