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The Friday 2007-11-09 at 16:09 -0800, Randall R Schulz wrote:
Once I had the list of (supposedly) bad blocks, I simply used an
invocation of "dd" (the stock dd, not dd_rescue) to copy zero bytes
(supplied by /dev/zero, of course) over the failing sectors.
Voila! After this, the bad sectors could be read without eliciting any
error indication at all, requiring no retries nor producing any kernel
messages.
I believe you may have simply triggered remapping of those bad sectors.
You can discover if that's so because in smartctl output one of the lines
counts them.
The moral: Don't give up easily if you have a young, expensive drive
that starts to give you SMART errors!
Obviously :-)
A percent of bad sectors are to be expected.
- --
Cheers,
Carlos E. R.
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