Messages in this thread | | | Subject | Re: [OFFTOPIC] Re: disk head scheduling | Date | Thu, 25 Mar 1999 16:34:11 +0100 | From | Helge Hafting <> |
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[...] > Here's why. If the drive manufactors could read all tracks at the same > time, they would do so. That would bump the drive speed from the current > platter speed to N_HEADs * (platter speed), which would be extremely nice. > > However, they can't do that. The tracks within the same cylinder are not > all at exactly the same place. Depending on which platter you are going for, > the heads settle at a slightly different place. Very annoying that. If it > weren't for that little problem, we could have 5 platter drives which were > 65MByte/sec drives.
It is doable - with a servo per platter. Maybe that isn't necessary, a piezoelectric fine-tune thing on each arm might be enough.
Helge Hafting
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