From owner-freebsd-fs@FreeBSD.ORG Thu Mar 8 04:58:15 2012 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 8F1021065672 for ; Thu, 8 Mar 2012 04:58:15 +0000 (UTC) (envelope-from davide.damico@contactlab.com) Received: from mail2.shared.smtp.contactlab.it (mail2.shared.smtp.contactlab.it [93.94.37.7]) by mx1.freebsd.org (Postfix) with ESMTP id DEFCD8FC13 for ; Thu, 8 Mar 2012 04:58:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha1; d=contactlab.com; s=s768; c=relaxed/relaxed; q=dns/txt; i=@contactlab.com; t=1331182692; h=From:Subject:Date:To:MIME-Version:Content-Type; bh=/sIhZGt4JzZjHnLvIb76LgNBqBI=; b=noVd2lK4XOkSHEfAPfAepqMZsBr3z6QrYfXYihZlcPexacYApUoD5onfsw/O5DW1 Gm67SoKdjnCj+wwmSkTTar43Y3LBusMIbQKHPtYIqdVSB9ZDt1mnT06NNCOIkoFk; Received: from [213.92.90.12] ([213.92.90.12:23755] helo=mail3.tomato.it) by t.contactlab.it (envelope-from ) (ecelerity 3.2.3.43244 r(43244)) with ESMTP id 9C/F5-28515-46C385F4; Thu, 08 Mar 2012 05:58:12 +0100 Received: from mx3-master.housing.tomato.lan ([172.16.7.55]) by mail3.tomato.it with smtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1S5VQa-000OQJ-TZ for freebsd-fs@freebsd.org; Thu, 08 Mar 2012 05:58:13 +0100 Received: (qmail 93883 invoked by uid 89); 8 Mar 2012 04:58:12 -0000 Received: from dynamic-adsl-94-36-132-49.clienti.tiscali.it (HELO imac-casadamico.local) (94.36.132.49) by mx3-master.housing.tomato.lan with SMTP; 8 Mar 2012 04:58:12 -0000 Message-ID: <4F583C63.60809@contactlab.com> Date: Thu, 08 Mar 2012 05:58:11 +0100 From: Davide D'Amico User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 MIME-Version: 1.0 To: Freddie Cash References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org Subject: Re: FreeBSD 9 and gmirror /geom raid 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: Thu, 08 Mar 2012 04:58:15 -0000 Il 08/03/12 00:02, Freddie Cash ha scritto: > On Wed, Mar 7, 2012 at 6:14 AM, Davide D'Amico > wrote: >> Hi, I have a server DELL R210 with two sata drives: >> ada0 at ahcich0 bus 0 scbus0 target 0 lun 0 >> ada0: ATA-8 SATA 2.x device >> ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) >> ada0: Command Queueing enabled >> ada0: 238418MB (488281250 512 byte sectors: 16H 63S/T 16383C) >> ada0: Previously was known as ad4 >> ada1 at ahcich1 bus 0 scbus1 target 0 lun 0 >> ada1: ATA-8 SATA 2.x device >> ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) >> ada1: Command Queueing enabled >> ada1: 238418MB (488281250 512 byte sectors: 16H 63S/T 16383C) >> ada1: Previously was known as ad6 >> >> Previously (8.x) - when I didn't use a hw raid - I used to install freebsd >> in a drive (i.e. ad4), boot from it and then: >> >> # sysctl kern.geom.debugflags=16 >> # gmirror label -v -b round-robin data ad4 >> # gmirror insert data ad6 >> // Modification to /etc/fstab >> // reboot >> >> How could accomplish to the same task with 9.0-RELEASE? > http://people.freebsd.org/~rse/mirror/ > Hi Freddie, and thanks for your link. I followed that procedure until 9.0-RELEASE but the new installer uses GPT as the default partition schema, which seems incompatible with gmirror. I noticed in the handbook (http://www.freebsd.org/doc/handbook/geom-mirror.html): "The following procedure is also incompatible with the default installation settings of FreeBSD 9./X/which use the newGPTpartition scheme. GEOM will overwriteGPTmetadata, causing data loss and possibly an unbootable system." So I think that the old procedure is no more useful. Thanks, d.