From owner-freebsd-scsi  Mon Nov 16 12:13:06 1998
Return-Path: <owner-freebsd-scsi@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id MAA02917
          for freebsd-scsi-outgoing; Mon, 16 Nov 1998 12:13:06 -0800 (PST)
          (envelope-from owner-freebsd-scsi@FreeBSD.ORG)
Received: from silver.gn.iaf.nl (silver.gn.iaf.nl [193.67.144.11])
          by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA02912
          for <freebsd-scsi@FreeBSD.ORG>; Mon, 16 Nov 1998 12:13:04 -0800 (PST)
          (envelope-from wilko@yedi.iaf.nl)
Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12])
	by silver.gn.iaf.nl (8.8.8/8.8.8) with SMTP id VAA19874;
	Mon, 16 Nov 1998 21:12:38 +0100
Received: by uni4nn.gn.iaf.nl with UUCP id AA11945
  (5.67b/IDA-1.5); Mon, 16 Nov 1998 20:44:45 +0100
Received: (from wilko@localhost) by yedi.iaf.nl (8.8.8/8.6.12) id UAA01018; Mon, 16 Nov 1998 20:01:39 +0100 (CET)
From: Wilko Bulte <wilko@yedi.iaf.nl>
Message-Id: <199811161901.UAA01018@yedi.iaf.nl>
Subject: Re: 520byte sector size
In-Reply-To: <199811160245.TAA24619@panzer.plutotech.com> from "Kenneth D. Merry" at "Nov 15, 98 07:45:53 pm"
To: ken@plutotech.com (Kenneth D. Merry)
Date: Mon, 16 Nov 1998 20:01:39 +0100 (CET)
Cc: ticso@cicely.de, freebsd-scsi@FreeBSD.ORG
X-Organisation: Private FreeBSD site - Arnhem, The Netherlands
X-Pgp-Info: PGP public key at 'finger wilko@freefall.freebsd.org'
X-Mailer: ELM [version 2.4ME+ PL38 (25)]
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-scsi@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org

As Kenneth D. Merry wrote...
> Bernd Walter wrote...
> > da8 at ahc6 bus 0 target 3 lun 0
> > da8: <IBM 0661467 G o> Fixed Direct Access SCSI2 device 
> > da8: 5.0MB/s transfers (5.0MHz, offset 12)
> > da8: 388MB (782600 520 byte sectors: 64H 32S/T 382C)
> > 
> > FreeBSD don't like this sector size very much :(
> > I know that they can be formated with 512 byte sectors.
> > I've done this with an old 1542 on a similar drive.
> > I just selected format in the BIOS-Tool and it lowlevel
> > formated it with 512 byte sectors.
> > 
> > Unfortunately I don't like the idea of plugging a videocard
> > into this host just for waiting for each drive (6 ones)
> > 
> > I've tried:
> > camcontrol cmd -n pass -u 12 -v -t 9999 -c "4 0 0 0 0 0"
> > but I gave me a fresh formated 520byte HDD :(
> > 
> > does anybody know the command to change the sector size?
> 
> Well, I've never done it before, but you might try changing the "Data Bytes
> per Physical Sector" field in mode page 3 (the "Format device" page).
> 
> Of the two disks in my machine here, the Quantum doesn't allow changing
> that value, but the IBM apparantly does.

FWIW I also once succeeded in setting a Micropolis from 518 to 512
bytes/sec. 

> If you can change it, you can then probably try formatting the drive again.

You need a format yes.

Wilko
_     ______________________________________________________________________
 |   / o / /  _  Bulte 				  email: wilko@yedi.iaf.nl 
 |/|/ / / /( (_) Arnhem, The Netherlands          WWW  : http://www.tcja.nl
______________________________________________ Powered by FreeBSD __________

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message