depreciate a voice recording feature
Should probably be deprecate unless they will be charging less for it(which I doubt).
Posts by JJF
6 publicly visible posts • joined 2 Apr 2015
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Thursday 2nd April 2015 15:41 GMT
killowatt per hour?
>15-20 kilowatts per hour for each PB that’s not on disk
What is a kilowatt per hour?
Presumably they mean kilowatts or maybe killowatt hours. But if its killowatt hours then over what period?
Say 512 2TB drives are used to store 1PB and that the drives are on and spinning 24 hours a day.
Also lets assume that it takes no power to retain the 1PB on tape.
If each drive is 6 watts then the power use of the drives would be
512*6=3072 watts lets call this 3kW
So 15-20 figure seems rather high but you could use smaller more power hungry drives.
Per day these drives would use
3kW*24=72kW hours per day
In this case the 15-20 figure seems rather low. Maybe they are factoring in the option to power down the hard drives if the data is not needed for a while.
No denying there could be a significant energy saving, but it would be nice if they at least used appropriate units.
Oh and obligatory shame on the Reg for not noticing.
Biting the hand that feeds IT
