[Beowulf] RE: Capitalization Rates - How often should you replace a cluster? (resent - 1st sending wasn't posted ).

Jon Aquilina eagles051387 at gmail.com
Tue Jan 20 23:53:38 PST 2009

well my apologies to all who are following this thread i took it off topic.
but i have been enlightened so now i know the reasoning behind replacement
of older hardware in a cluster

On Wed, Jan 21, 2009 at 7:04 AM, Mark Hahn <hahn at mcmaster.ca> wrote:

>  Think about it: if you pay 1/3 the cost of a new node per year in rent
>> and utilities,
> that seems amazingly high to me.  I don't have much sense for rent,
> but even if we ran our clusters on "retail" power rates it would only
> amount to 2.3% of purchase cost.  you could pretty easily argue that our
> purchase prices are high, but even so still < 10%/year.  with your
> kind of costs, wouldn't it make sense to consider a colo site?  from
> a cursory grep of the web, it sounds like they're still substantially
> less than 33%...
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Jonathan Aquilina
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