From owner-freebsd-current@FreeBSD.ORG Fri Jun 17 13:27:20 2011 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4742C106566B for ; Fri, 17 Jun 2011 13:27:20 +0000 (UTC) (envelope-from gavin@FreeBSD.org) Received: from ixe-mta-27.emailfiltering.com (ixe-mta-27-tx.emailfiltering.com [194.116.199.158]) by mx1.freebsd.org (Postfix) with ESMTP id A9E508FC16 for ; Fri, 17 Jun 2011 13:27:19 +0000 (UTC) Received: from mail-gw5.york.ac.uk ([144.32.129.29]) by ixe-mta-27.emailfiltering.com with emfmta (version 4.8.2.32) by TLS id 1141475054 for mav@FreeBSD.org;40015e0975a6d7a4; Fri, 17 Jun 2011 14:09:47 +0100 Received: from buffy-128.york.ac.uk ([144.32.128.160]:53447 helo=buffy.york.ac.uk) by mail-gw5.york.ac.uk with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1QXYnz-0000Zh-70; Fri, 17 Jun 2011 14:09:47 +0100 Received: from buffy.york.ac.uk (localhost [127.0.0.1]) by buffy.york.ac.uk (8.14.4/8.14.4) with ESMTP id p5HD9lLc046264; Fri, 17 Jun 2011 14:09:47 +0100 (BST) (envelope-from gavin@FreeBSD.org) Received: (from ga9@localhost) by buffy.york.ac.uk (8.14.4/8.14.4/Submit) id p5HD9krV046263; Fri, 17 Jun 2011 14:09:46 +0100 (BST) (envelope-from gavin@FreeBSD.org) X-Authentication-Warning: buffy.york.ac.uk: ga9 set sender to gavin@FreeBSD.org using -f From: Gavin Atkinson To: Alexander Motin In-Reply-To: <4D8BBC29.6040500@FreeBSD.org> References: <4D8BBC29.6040500@FreeBSD.org> Content-Type: text/plain; charset="ASCII" Content-Transfer-Encoding: quoted-printable Date: Fri, 17 Jun 2011 14:09:46 +0100 Message-ID: <1308316186.45314.21.camel@buffy.york.ac.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Cc: FreeBSD-Current Subject: Re: graid hit the tree X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Jun 2011 13:27:20 -0000 On Thu, 2011-03-24 at 23:48 +0200, Alexander Motin wrote: > Hi. >=20 > I've just committed the new GEOM-based software RAID driver (graid) into > the HEAD [1]. Brave testers are welcome. :) >=20 > 1. http://svn.freebsd.org/viewvc/base?view=3Drevision&revision=3D219974 One question. I'm very happy with the performance of the ahci subsystem, it is measurably faster against the old ATA subsystem on modern hardware. I also really appreciate the compatibility shims to aid migration from the adX style numbering to adaX. On every system I've migrated so far, this mapping has worked flawlessly. Is there any chance that mapping from /dev/arX -> /dev/raid/r0 etc could also be done? One thing that I have found is that it can be hard to determine from the dmesg exactly where raid partitions will appear. It would be wonderful if devices similar to the "adX" devices could be made, for any graid devices found. Thanks, Gavin --=20 Gavin Atkinson FreeBSD committer and bugmeister GPG: A093262B (313A A79F 697D 3A5C 216A EDF5 935D EF44 A093 262B)