You could say that this may be turning into a heated debate.

Sorry, i know I should't but I just couldn't help myself.

Thanks for all the input.  At this stage I am still going with a well
insulated (lets assume the unobtainable perfectly insulated room with
no humans) will have to remove as much energy in the form of heat as
there is electrical energy passing into the room (averaged over time
to account for things spinning etc).

regards justin

On 1/17/07, Neil Baylis <neil.baylis@gmail.com> wrote:
> > Most of the energy going into a hard drive ends up as heat
> > in the chips & resistors, the rest in the spinning platters.
>
> Surprisingly, it's the other way round. A significant proportion of
> heat (> 50%) generated by a hard drive is caused by air friction and
> bearing friction. This was told me by an engineer who worked at
> Seagate and would be in a position to know.
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