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    SubjectRe: Journaling pointless with today's hard disks?
    Followup to:  <>
    By author: "Richard B. Johnson" <>
    In newsgroup:
    > It isn't that easy! Any kind of power storage within the drive would
    > have to be isolated with diodes so that it doesn't try to run your
    > motherboard as well as the drive. This means that +5 volt logic supply
    > would now be 5.0 - 0.6 = 4.4 volts at the drive, well below the design
    > voltage. Use of a Schottky diode (0.34 volts) would help somewhat, but you
    > have now narrowed the normal power design-margin by 90 percent, not good.

    Hardly a big deal since most logic is 3.3V these days (remember, you
    don't need to maintain VccIO since the bus is dead anyway).

    <> at work, <> in private!
    "Unix gives you enough rope to shoot yourself in the foot." <>
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