OT: the 1U system

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Thu Jan 30 13:37:49 2003

> Folklore for PC's was that if you recorded data on a hard drive with the
> platters horizontal, remounting it vertically could cause read errors. Any
> truth to this?

It might be true for the old hard drives that used stepper motor
positioners, or some other system where the positioning was 'absolute'
rather than taking a position reference (servo) signal off the platters.
With those drives, the force of gravity on the head assembly might move
it slightly off-track.

Servo-tracked drives position the head by reading signals off the
platters, and will correct automatically for gravity, etc.

Received on Thu Jan 30 2003 - 13:37:49 GMT

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