Hard Disk Failure

[Ben Scott]

> I don't understand the drive physics, but I've recovered drives with
> dd_rhelp that dd couldn't salvage.

  dd_rhelp's main feature is that it recovers the "easy" stuff first,
saving the "hard" work for last.  Thus if the drive has only a few bad
blocks, everything else gets copied first, and then it sits there
retrying until it gets the last bits of data or you kill it.

  I dunno if dd_rescue just makes this easier, or if it could all be
done with dd, or what.

-- Ben