Re: S.M.A.R.T. hard drives WAS: SCSI vs. IDE performance test

Bruce Momjian <pgman@candle.pha.pa.us>

From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Joseph Shraibman <jks@selectacast.net>
Cc: Martijn van Oosterhout <kleptog@svana.org>, pgsql-general@postgresql.org
Date: 2003-11-28T21:45:52Z
Lists: pgsql-general
Joseph Shraibman wrote:
> > Actually, drives have S.M.A.R.T for reporting these kind of issues. The idea
> > being that a counter decrements every time a block is remapped. When it
> > reaches a declared threshold the drive declares an error and if it's in
> > warranty that's enough to convince the manufacturer to send you a new disk.
> > 
> > Not that many people use this feature, but it is there.
> 
> I used smartsuite (http://sourceforge.net/projects/smartsuite/) to view 
> the status of the drives, but the relocated sector count appears only 
> available on ide drives.  Does anyone know if that is the nature of scsi 
> drives or is it just a limitation of that tool?

Do SCSI drives even do relocation?  I had a Seagate SCSI drive that
would beep every time I tried to access a bad block, basically telling
me to replace the drive.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073