Energy saving issue is in all IT managers nowadays. ISO 14001 takes a greater place in all companies and "cloud companies" (almost all of them) advertise that cloud will be a key element of the green strategy of any company.
But will clouds really allow that?
It seems logical when presented this way:
You have 5 servers that you need to cool down used at 80%, if you have 4 servers at 100% you will save the cooling of one server. That seems correct isn't it?
But what is cloud computing but the commoditization of computing resources? What happened when electricity became a commodity? It resulted into an increase of its consumption. Why? because it became cheap and easy. Why would that be any different for clouds?
What's your thoughts on that? What would you answer if one of your customer challenges you on that?
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