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To: Axel.Gruner@suedfactoring.de
References: <OF307E609B.5862996A-ONC1257050.003FA131-C1257050.003FA134@suedfac.com>
From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: 02 Aug 2005 10:02:39 -0400
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Cc: freebsd-questions@freebsd.org
Subject: Re: camcontrol error
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Axel.Gruner@suedfactoring.de writes:

> i have a problem with camcontrol (running FreeBSD 5.4-STABLE).
> Checking the defects on my drive will print out an error which i do not
> know:
> 
> #camcontrol defects da0 -G -f bfi
> camcontrol: Error returned from read defect data command
> 
> #camcontrol defects da0 -f phys -G
> camcontrol: Error returned from read defect data command
> 
> So, what could be the problem?

Probably just that the drive doesn't support the READ DEFECT DATA
command.  Try the "block" format, but some drives just don't support
it at all.