[mythtv-users] OT: Predicted hard drive failure; replacement consideration

Richard Morton richard.e.morton at gmail.com
Wed Apr 18 22:37:00 UTC 2012


>
>
> Obviously, given the cycle time, this makes them effective impossible
> to work around, even if you could theoretically do so; DDrescue is
> likewise useless, since "real" reverse read isn't implemented in that
> program, and the author declines to do so.
>
>
Remember there are two programs which are independently developed and both
called ddrescue.

http://www.gnu.org/software/ddrescue/ddrescue.html
http://www.garloff.de/kurt/linux/ddrescue/

one of which I swear by, the other frustrates me... the problem is that I
can never remember which is which ;-)

One of these programs works to quickly as possible recover as much as
possible, then go back to bad sectors to recover the rest once it has the
bulk of the data, the other works on the data sequentially no matter how
long it takes.... The former is my preference and I think gnu ddrescue is
that one

but if you have a usecase where reverse block recovery makes sense i think
the garloff app does that for you. Both are in the ubuntu standard packages
list

R
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