From owner-freebsd-stable@FreeBSD.ORG  Thu Feb 17 12:45:15 2011
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 82507106564A
	for <freebsd-stable@freebsd.org>; Thu, 17 Feb 2011 12:45:15 +0000 (UTC)
	(envelope-from lists@c0mplx.org)
Received: from home.opsec.eu (home.opsec.eu [IPv6:2001:14f8:200::1])
	by mx1.freebsd.org (Postfix) with ESMTP id 416BE8FC18
	for <freebsd-stable@freebsd.org>; Thu, 17 Feb 2011 12:45:15 +0000 (UTC)
Received: from pi by home.opsec.eu with local (Exim 4.72 (FreeBSD))
	(envelope-from <lists@c0mplx.org>) id 1Pq3ER-00034e-Sx
	for freebsd-stable@freebsd.org; Thu, 17 Feb 2011 13:45:15 +0100
Date: Thu, 17 Feb 2011 13:45:15 +0100
From: Kurt Jaeger <lists@c0mplx.org>
To: freebsd-stable@freebsd.org
Message-ID: <20110217124515.GI34314@home.opsec.eu>
References: <20110217115653.GH34314@home.opsec.eu>
	<AANLkTi=QMXvFtTyY9BUGg56VtTuac3G_0LnXaVboJQQz@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <AANLkTi=QMXvFtTyY9BUGg56VtTuac3G_0LnXaVboJQQz@mail.gmail.com>
Subject: Re: 3TB disc and block alignment
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 17 Feb 2011 12:45:15 -0000

Hi!

Edho P Arief wrote:

> > I have one of the new 3TB drives:
> >
> > da0: <Hitachi HUA723030ALA640 > Fixed Direct Access SCSI-5 device
> > da0: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
> >
> > Now as far as I understand, one can operate it with many 512byte blocks
> > or one can try to use the internal 4kbyte blocks.

> ...I think it goes like this.
> 
> ZFS:
> >>>create GPT
> # gpart create -s gpt da0
> >>>add partition, start at 4k-aligned sector
> # gpart add -t freebsd-zfs -b 1024 da0

Thanks -- is it also possible to have something like

da0: 2861588MB (732566646 4096 byte sectors: 255H 63S/T 364801C)

appear during the boot ?

Has anyone ever tried ? Would FreeBSD support it ?

-- 
pi@opsec.eu            +49 171 3101372                         9 years to go !