Messages in this thread | | | Date | Thu, 24 May 2001 08:50:04 -0700 | From | Jonathan Lundell <> | Subject | Re: Dying disk and filesystem choice. |
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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. - 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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