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SubjectRe: Dying disk and filesystem choice.
At 10:31 AM +0200 2001-05-24, Andi Kleen wrote:
>reiserfs doesn't, but the HD usually has transparently in its firmware.
>So it hits a bad block; you see an IO error and the next time you hit
>the block the firmware has mapped in a fresh one from its internal
>reserves.

Drives have remapping capability, but it's the first I've heard of HD
firmware doing it automatically. I'd be very interested in reading
the relevant documentation, if you could provide a pointer. Seems to
me if a drive *could* do this, you'd certainly want to turn it
(automatic remapping) off. There's way too much chance that a system
will read the remapped sector and assume that it contains the
original data. That would be hopelessly corrupting.
--
/Jonathan Lundell.
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