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    SubjectRe: [OFFTOPIC] Re: disk head scheduling
    > 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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