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> To wipe a drive use dban. - live CD which uses (US) gov approved |
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> standards of wipe methods/patterns. |
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Or shred, which comes with coreutils. |
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> dd is only going to show sectors on a failed drive - too late! |
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> |
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> To explain, modern drives have a store of locations they can use to |
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> transparently replace any failed locations (apparently similar to the |
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> way SSD's do it) - the internal drive electronics handle this and its |
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> not visible externally though smart data seems to show it, but as google |
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> says, smart is a bit suspect. The problem of a bad sector will only |
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> show once all the reserved locations are used up, by which time the |
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> drive is usually in rampant failure. |
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> |
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> I do suspect this is one reason for googles results - actual failures of |
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> the media (as against the motors/electronics are much as they always |
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> have been, but the drives are not reporting them until its too late. |
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Ahh - go to know. My reasoning assumed that smart reports all remaps. |