From owner-freebsd-stable@FreeBSD.ORG Tue Jul 19 20:58:14 2011 Return-Path: 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 3331B106564A for ; Tue, 19 Jul 2011 20:58:14 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from mail.ebusiness-leidinger.de (mail.ebusiness-leidinger.de [217.11.53.44]) by mx1.freebsd.org (Postfix) with ESMTP id E0E4E8FC0C for ; Tue, 19 Jul 2011 20:58:13 +0000 (UTC) Received: from outgoing.leidinger.net (p4FC41C31.dip.t-dialin.net [79.196.28.49]) by mail.ebusiness-leidinger.de (Postfix) with ESMTPSA id B7053844010; Tue, 19 Jul 2011 22:41:26 +0200 (CEST) Received: from unknown (IO.Leidinger.net [192.168.1.12]) by outgoing.leidinger.net (Postfix) with ESMTP id 094E1283C; Tue, 19 Jul 2011 22:41:24 +0200 (CEST) Date: Tue, 19 Jul 2011 22:41:26 +0200 From: Alexander Leidinger To: Jeremy Chadwick Message-ID: <20110719224126.00000a25@unknown> In-Reply-To: <20110718234124.GA5626@icarus.home.lan> References: <20110718234124.GA5626@icarus.home.lan> X-Mailer: Claws Mail 3.7.8cvs47 (GTK+ 2.16.6; i586-pc-mingw32msvc) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-EBL-MailScanner-Information: Please contact the ISP for more information X-EBL-MailScanner-ID: B7053844010.AD48B X-EBL-MailScanner: Found to be clean X-EBL-MailScanner-SpamCheck: not spam, spamhaus-ZEN, SpamAssassin (not cached, score=-0.923, required 6, autolearn=disabled, ALL_TRUSTED -1.00, TW_ZF 0.08) X-EBL-MailScanner-From: alexander@leidinger.net X-EBL-MailScanner-Watermark: 1311712887.11659@RTKkVflNP5oqQWlEyiG3mg X-EBL-Spam-Status: No Cc: "freebsd-stable@freebsd.org Stable" Subject: Re: Status of support for 4KB disk sectors X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jul 2011 20:58:14 -0000 On Mon, 18 Jul 2011 16:41:24 -0700 Jeremy Chadwick wrote: > But the currently "known method" is to use gnop(8). Here's an > example: > > http://www.leidinger.net/blog/2011/05/03/another-root-on-zfs-howto-optimized-for-4k-sector-drives/ > > Now, that's for ZFS, but I'm under the impression the exact same is > needed for FFS/UFS. Info: gnop will not work for FFS/UFS because gnop is a temporary solution (needs to be done by hand at each reboot). For FFS/UFS you need to align the slice/partition and chose a good blocksize/fragsize combination (e.g. 32k/4k). Bye, Alexander. -- http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137