Richard Kettlewell a écrit :
Pascal Hambourg writes:
Rod Speed a écrit :
Yeah, a few reallocated sectors are no big deal on a drive
that old.
However having Current_Pending_Sector or Offline_Uncorrectable = 1 is a
bit more annoying. It means that the data inside a sector is currently
unreadable and the embedded disk controller was unable to reallocate the
failing sector. In short, it means : data has been lost. Not too good
for a backup drive.

AIUI Current_Pending_Sector means the controller hasn't had the
opportunity to reallocate yet, not that it's tried and failed. But yes,
any reads from affected sectors can be expected to fail.

AFAIK the opportunity to reallocate a bad sector can come in two ways :
- the host writes new data into the sector, so the old unreadable data
become irrelevant ;
- the sector is read successfully and its data can be moved to another
location. Obviously, this did not happen.

Oh, another thing:

Not too bad if they don't keep increasing.

Normalized SMART values decrease towards failure.

I guess that Rod Speed meant the raw values, much more meaningful for
humans.