Re: Miniaturisation?
"Why should there be any diminishing return in IOPS as you increase the number of heads?"
There's not a diminishing return in the IOPS (provided you're always running the disk at maximum). There's a diminishing return in the relative improvement you're seeing over the previous upgrade.
So if you have the traditional 1 fixed set, you have performance X, and spliutting the stack in half basically doubles your output to 2X ( plus a fairly negligible increase from weight reduction). That's a 100% performance improvement for the price of the additional actuators. But adding a third arm only takes you from 2X to 3X, so that's only a 50% improvement over the 2X.
Biting the hand that feeds IT
