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Hi Jeff. >> What will happen when a PATA disk lies behind a Marvel(ous) bridge, as >> in most SATA disks today? > > Larger transfers work fine in PATA, too. Correct me if I'm wrong but wasn't the max number of sectors in a transfer limited to 255 instead of 256 because there were buggy drives out there before ? I seem to recall something like that but I could be wrong. Of course I hope nobody in his right mind would take those old things, slap a Marvel chip on it and sell it as new :) But someone else could buy one of those SATA<->PATA converter cables with a Marvel on it and run it with the old disk <shudder>. Wouldn't those cases bug out? >> Is large transfers mandatory in the LBA48 spec and is LBA48 really >> mandatory in SATA? > > Yes and no, in that order :) SATA doesn't mandate lba48, but it is > highly unlikely that you will see SATA disk without lba48. Naturally, see my comment above regarding SATA<->PATA converter cables. > Regardless, libata supports what the drive supports. Older disks still > work just fine. Or.. should :) // Stefan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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