From owner-freebsd-fs@FreeBSD.ORG Tue May 4 12:28:06 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3B206106566C for ; Tue, 4 May 2010 12:28:06 +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 046028FC14 for ; Tue, 4 May 2010 12:28:04 +0000 (UTC) Received: from mmx.lexasoft.ru (mmx.lexasoft.ru [92.241.160.6]) by relay.wahome.ru (Postfix) with ESMTP id 6ACFE6B194C; Tue, 4 May 2010 16:24:59 +0400 (MSD) Received: from [92.241.160.200] (unknown [92.241.160.200]) by mmx.lexasoft.ru (Postfix) with ESMTPSA id 9A95928490; Tue, 4 May 2010 16:28:02 +0400 (MSD) Mime-Version: 1.0 (Apple Message framework v1078) Content-Type: text/plain; charset=utf-8 From: Alexey Tarasov In-Reply-To: <20100503230651.GH2763@ma.sigsys.de> Date: Tue, 4 May 2010 16:28:01 +0400 Content-Transfer-Encoding: quoted-printable Message-Id: References: <20100503230651.GH2763@ma.sigsys.de> To: Raphael Becker , freebsd-fs@freebsd.org X-Mailer: Apple Mail (2.1078) Cc: 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: Tue, 04 May 2010 12:28:06 -0000 On 04.05.2010, at 3:06, Raphael Becker wrote: > I'm planning to buy two 2-TB-drives for ZFS with FreeBSD 8.0. > I don't know about the sector size of this drives, but lets assume 4k >=20 > I there any documented and recommend way to get 4k-drives working with=20= > ZFS with *good* performance? Do we need a workaround here or is = updating > to a latest -STABLE a solution here?=20 If the disk exposes to OS right sector size, ZFS works good with it. = Proved on gnop+zfs over fake 512 drives (WD15-EARS). >=20 > TIA > Raphael Becker >=20 > --=20 > Raphael Becker = http://rabe.uugrn.org/ > = https://www.xing.com/profile/Raphael_Becker > GnuPG: E7B2 1D66 3AF2 EDC7 9828 6D7A 9CDA 3E7B 10CA = 9F2D > = .........|.........|.........|.........|.........|.........|.........|.. -- Alexey Tarasov (\__/)=20 (=3D'.'=3D)=20 E[: | | | | :]=D0=97=20 (")_(")