[CentOS] [Q} how can O.S. predicate a disk going to failure??

Anne Wilson cannewilson at googlemail.com
Tue Aug 4 13:58:00 UTC 2009

On Tuesday 04 August 2009 14:48:03 Kwan Lowe wrote:
> 2009/8/4 mcclnx mcc <mcclnx at yahoo.com.tw>:
> [snip]
> > my questions are:
> >
> > 1. is this disk really "degrade" or not?
> >
> > 2. how O.S. can predicate disk going to failure?
> >
> > 3. do I need replace this disk now?
> I understand that the drive electronics can check things such as the
> time it takes to read a sector, number of failures per read, retries
> before success etc.. This information gets processed and reported to
> the OS via SMART as some others have replied.
> But I really just want to say that within one day of getting SMART
> errors, my disk failed.
FWIW, Smart started noting problems on my laptop drive, and the manufacturer 
accepted a Smart report as sufficient to warrant a replacement drive being 
fitted under warranty.

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