From owner-freebsd-fs@FreeBSD.ORG Sun Jul 4 02:44:59 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 2D46C106567A for ; Sun, 4 Jul 2010 02:44:59 +0000 (UTC) (envelope-from bounces@nabble.com) Received: from kuber.nabble.com (kuber.nabble.com [216.139.236.158]) by mx1.freebsd.org (Postfix) with ESMTP id 0902E8FC0C for ; Sun, 4 Jul 2010 02:44:57 +0000 (UTC) Received: from isper.nabble.com ([192.168.236.156]) by kuber.nabble.com with esmtp (Exim 4.63) (envelope-from ) id 1OVFCT-0002i5-5o for freebsd-fs@freebsd.org; Sat, 03 Jul 2010 19:44:57 -0700 Message-ID: <29067121.post@talk.nabble.com> Date: Sat, 3 Jul 2010 19:44:57 -0700 (PDT) From: Bucarr To: freebsd-fs@freebsd.org In-Reply-To: <20100704005336.00003234@unknown> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Nabble-From: bucarr@gmail.com References: <29065362.post@talk.nabble.com> <20100704005336.00003234@unknown> Subject: Re: zfs on 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: Sun, 04 Jul 2010 02:44:59 -0000 On Sat, 3 Jul 2010 11:28:03 -0700 (PDT) Bucarr wrote: > I was wondering that as well. So I set up a new FreeBSD8.0 box with > a UFS2 disk as my boot disk and two WD 2TB EARS drives ("Advanced > Format") for a zfs data array. I made no attempt to alter the WD > drives in any way and ignored the 512b vs 4096b issues. 'zpool > create tank raidz da0 da1' set up the array in a few seconds and I've > copied to/from with no troubles and no apparent performance issues > that I care about. If I had more of the WD drives lying around, I'd > add those to the array and see what gives then. I suspect the performance may be acceptable, but probably not great. I thought I didn't have any problems with RAIDZ's variable stripe size on my EARS drives either until I found some writes would suddenly take ages to finish, causing applications to hang. -- Bruce Cran I wonder if my 2 drive experiment in RAIDZ didn't simply mirror the drives so that striping wasn't invoked at all? -- View this message in context: http://old.nabble.com/zfs-on-4k-sector-disks-tp27664932p29067121.html Sent from the freebsd-fs mailing list archive at Nabble.com.