From owner-freebsd-scsi  Sun Apr 15 11:26:23 2001
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Date: Sun, 15 Apr 2001 11:26:09 -0700 (PDT)
From: Matthew Jacob <mjacob@feral.com>
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To: Thomas Stromberg <thomas@stromberg.org>
Cc: Wilko Bulte <wkb@freebie.demon.nl>, freebsd-scsi@FreeBSD.ORG
Subject: Re: da0: invalid sector size 520
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This is a drive that was in a raid unit. Reformat to to 512 byte
sectors. There's some camcontrol magic for doing this, but, frankly, I just
use Solaris.


On Sun, 15 Apr 2001, Thomas Stromberg wrote:

> 
> On Sunday, April 15, 2001, at 02:01 PM, Wilko Bulte wrote:
> 
> > On Sun, Apr 15, 2001 at 12:45:32PM -0400, Thomas Stromberg wrote:
> >> I'm trying to add the following Seagate Barracuda to my FreeBSD box:
> >>
> >> da0: <SEAGATE ST15150N 3514> Fixed Direct Access SCSI-2 device
> >> da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing 
> >> Enabled
> >> da0: 4087MB (8242659 520 byte sectors: 255H 63S/T 513C)
> >>
> >> notice the 520 byte sectors? This occurs whenever I try to do any
> >> operations (sysinstall, dd, disklabel) with da0:
> >>
> >> da0: invalid sector size 520
> >
> > Guessing:
> >
> > Could be a disk from a machine that uses hardware RAID or extra 
> > checksumming
> > in the 8 bytes beyond 512 bytes/sector. You can try to reformat the 
> > drive
> > while first selecting 512 bytes/sector.
> >
> > W/
> 
> Not sure where this disk came from, got it from Ebay. The problem I have 
> is I'm getting this error while trying to reformat it.. from sysinstall, 
> disklabel, newfs, and dd.. Any advice on how to re-format this disk that 
> I'm missing? I'm not very experieced with SCSI stuff.
> 
> BTW, I'm not on the SCSI mailing list, so any replies should be CC'd to 
> me
> 
> / Thomas
> 
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