From owner-freebsd-fs@FreeBSD.ORG Mon Mar 29 08:40:24 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D2B74106566C for ; Mon, 29 Mar 2010 08:40:24 +0000 (UTC) (envelope-from me@lexasoft.ru) Received: from relay.wahome.ru (relay.wahome.ru [95.211.21.141]) by mx1.freebsd.org (Postfix) with ESMTP id 98D2E8FC1B for ; Mon, 29 Mar 2010 08:40:24 +0000 (UTC) Received: from mmx.lexasoft.ru (mmx.lexasoft.ru [92.241.160.6]) by relay.wahome.ru (Postfix) with ESMTP id 32C516B2135 for ; Mon, 29 Mar 2010 12:37:32 +0400 (MSD) Received: from [192.168.40.138] (unknown [124.157.205.118]) by mmx.lexasoft.ru (Postfix) with ESMTPSA id E271228490 for ; Mon, 29 Mar 2010 12:40:21 +0400 (MSD) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Apple Message framework v1077) From: Alexey Tarasov In-Reply-To: <641044.19603.qm@web112420.mail.gq1.yahoo.com> Date: Mon, 29 Mar 2010 12:40:21 +0400 Content-Transfer-Encoding: quoted-printable Message-Id: <767C3247-5913-4C23-94D6-5D72CAD60515@lexasoft.ru> References: <492FB7C5-1B48-46BA-B63F-E7CBF7A0A195@lexasoft.ru> <641044.19603.qm@web112420.mail.gq1.yahoo.com> To: freebsd-fs@freebsd.org X-Mailer: Apple Mail (2.1077) Subject: Re: ZFS raidz and 4k sector disks X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Mar 2010 08:40:24 -0000 Cool. May be there is someone here who can implement this solution? On 29.03.2010, at 11:36, Simun Mikecin wrote: > I don't think they will ever come with a firmware update like that = because WD has major operating systems (like Windows 7) covered. > It could be solved by asking the drive what is the size of a sector = (such ATA call exists: see = http://www.wdc.com/wdproducts/library/WhitePapers/ENG/2579-771430.pdf) = and set the sector size of the device (/dev/[a]da*) as needed . That = would be a permanent solution for ZFS, UFS, swap or any other consumer = of this device. -- Alexey Tarasov (\__/)=20 (=3D'.'=3D)=20 E[: | | | | :]=D0=97=20 (")_(")