[ Cloud Computing ] Re: why virtualization?

I can see why this seems contradictory, but if you think about from a
different point of view it may be easier to split them apart.

The Cloud has benefits for the end users, applications or service by
offering capacity, storage, performance or what you need on demand.
The Virtualization has benefits for the cloud by facilitating the
managment the HW/SW and processes that is needed for creating the
foundations of the cloud.

Kenneth

Dan Kearns wrote:
>
> Out of curiosity.... it seems to me that two pretty fundamental tenets
> of cloud computing are contradictory:
>
> Virtualization: a mechanism to get better utilization of existing
> hardware when loads are generally smaller than node capacity, or spiky
> in the time domain
>
> Griddiness: (for lack of a better word) the idea that appropriate
> cloud designs support massive scale, and do it by aggregating many
> small+cheap failure-prone compute units with smarter software
>
> If the goals are to have smarter software and maximize utilization (or
> minimize power consumption for equivalent compute capacity), then why
> introduce the constant runtime overhead of virtualization instead of,
> eg using smaller more power-efficient compute-unit designs and making
> the hardware controllable by software?
>
> Am I missing something, or is virtualization a tactical answer and
> therefore a short-term solution, and not a great place to start
> building management frameworks (for example) on top of?
>
> -d
>
>
> >

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