From owner-freebsd-fs@FreeBSD.ORG Fri Apr 9 08:28:38 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 698971065673 for ; Fri, 9 Apr 2010 08:28:38 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id AC57F8FC29 for ; Fri, 9 Apr 2010 08:28:37 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id LAA13978; Fri, 09 Apr 2010 11:28:35 +0300 (EEST) (envelope-from avg@icyb.net.ua) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1O09Zr-0004gQ-H5; Fri, 09 Apr 2010 11:28:35 +0300 Message-ID: <4BBEE533.2050507@icyb.net.ua> Date: Fri, 09 Apr 2010 11:28:35 +0300 From: Andriy Gapon User-Agent: Thunderbird 2.0.0.24 (X11/20100321) MIME-Version: 1.0 To: Alexey Tarasov References: <201003291616.27838.Pascal.Stumpf@cubes.de> <9D752CC7-5CCA-454D-8BEC-F3D5E6F8445C@lexasoft.ru> <46D5776E-39F0-48A7-B1C0-B844BF5147C5@lexasoft.ru> In-Reply-To: <46D5776E-39F0-48A7-B1C0-B844BF5147C5@lexasoft.ru> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org 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: Fri, 09 Apr 2010 08:28:38 -0000 on 08/04/2010 16:55 Alexey Tarasov said the following: > Hello. > > I've tried all methods and realized that unfortunately the only working > method is gnop. So you can't use these disks for ZFS at all now. Why? And what are you actually trying to do? My understanding was that even with 512-byte sectors ZFS still aligns its on-disk data with > 4K alignment. Do you see otherwise? What problem do you have? -- Andriy Gapon