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Date:      Tue, 27 Apr 2004 08:16:03 +0200
From:      Wilko Bulte <wkb@freebie.xs4all.nl>
To:        Robert Johannes <rjohanne@piper.hamline.edu>
Cc:        freebsd-scsi <scsi@FreeBSD.ORG>
Subject:   Re: IBM 36gig drive
Message-ID:  <20040427061603.GA13398@freebie.xs4all.nl>
In-Reply-To: <Pine.GSO.4.44.0404270042480.13343-100000@blackbear.hamline.edu>
References:  <Pine.GSO.4.44.0404270042480.13343-100000@blackbear.hamline.edu>

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On Tue, Apr 27, 2004 at 12:47:00AM -0500, Robert Johannes wrote:
> I've six ibm DRHS36D 36gig drives attached to a sym0 controller (tekram
> dc-390) and each time I try to do anything with the drive, I get a message
> to the effect of:
> "da1: invalid sector size 520"
> "da2: invalid sector size 520"
> "da3: invalid sector size 520"
> 
> This goes on for all six drives.  Can any body give me any clues as to
> what's wrong, and how to correct it?  I'm running 4.9 stable.

Looks like a drive taken from a RAIDarray of some sorts.  It has 8 bytes
extra per block compared to the standard 512 bytes/block.  It will need a 
low level format to make it 512. In most cases that is done via a mode
select command, followed by a format unit command.  Check with IBM how
this is done for their drives, as this kind of stuff is vendor unique.

-- 
Wilko Bulte				wilko@FreeBSD.org



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