From owner-freebsd-questions@FreeBSD.ORG Tue Jan 23 17:26:57 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 366B016A400 for ; Tue, 23 Jan 2007 17:26:57 +0000 (UTC) (envelope-from apatewna@yahoo.gr) Received: from outgoing.holservices.gr (outgoing.holservices.gr [62.38.2.44]) by mx1.freebsd.org (Postfix) with SMTP id 782A813C45B for ; Tue, 23 Jan 2007 17:26:56 +0000 (UTC) (envelope-from apatewna@yahoo.gr) Received: (qmail 23069 invoked from network); 23 Jan 2007 17:26:37 -0000 Received: from unknown (HELO deliver.mail.dc.hol.net) (192.168.20.70) by arete.mail.dc.hol.net with SMTP; 23 Jan 2007 17:26:37 -0000 Received: from auth-smtp.hol.gr (takeit02.mail.dc.hol.net [192.168.20.72]) by deliver.hol.gr (8.12.11/8.11.6) with ESMTP id l0NHQhO7008427 (using TLSv1/SSLv3 with cipher DHE-RSA-AES256-SHA (256 bits) verified OK) for ; Tue, 23 Jan 2007 19:26:43 +0200 Received: from [192.168.1.20] (ppp044-037.dsl.hol.gr [89.210.44.37]) by auth-smtp.hol.gr (8.13.1/8.12.11) with ESMTP id l0NHQgEB020643 for ; Tue, 23 Jan 2007 19:26:42 +0200 Message-ID: <45B64542.6000600@yahoo.gr> Date: Tue, 23 Jan 2007 19:26:26 +0200 From: Apatewna User-Agent: Mozilla Thunderbird 1.5.0.9 (X11/20070104) MIME-Version: 1.0 To: FreeBSD Users Questions References: <539c60b90701161033v5e316ef4m19332bd6e86ab67b@mail.gmail.com> <20070123011659.GD22569@dfwdamian.vail> <20070123151832.GB15419@gizmo.acns.msu.edu> In-Reply-To: <20070123151832.GB15419@gizmo.acns.msu.edu> Content-Type: text/plain; charset=ISO-8859-7; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.88.7/2480/Tue Jan 23 13:21:51 2007 on takeit02.mail.dc.hol.net X-Virus-Status: Clean Subject: Re: hardware mirrors recognized as individual disks in fbsd X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: apatewna@yahoo.gr List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jan 2007 17:26:57 -0000 > On Mon, Jan 22, 2007 at 07:16:59PM -0600, Damian Wiest wrote: > >>> >>> Forging ahead, I get ready to start playing the mounting game, but >>> lo-and-behold, suddenly I have 4 disks whereas in windows I had two. Now I >>> praise FreeBSD for it's superior intellect here, but now I have a problem. >>> I want two 160GB mirrored volumes, not 4 unmirrored ones. The RAID is an >>> ASUS P5DR1-VM motherboard with a ULI raid chipset onboard. Very nice setup >>> for the money. >>> >>> Is this normal? Am I going to break my mirror if I mount a single disk? If >>> so, how do I mount a mirror? I have a Gigabyte motherboard GA-7N400Pro2 with an onboard IDE RAID controller IT8212F. Two IDE disks of 80GB connected on it. I have created a RADI-1 volume using the onboard RAID utility and partitioned the volume (50-50) while installing windows. In windows I could see two primary partitions. When I installed FreeBSD 6.1, sysinstall gave me the option of installing on three different disks. The "ad0", "ad1" and "ar0". The last is the RAID-1 volume that FreeBSD recognises by default. I chose "ar0" and proceeded to install into the second partition of the volume. All well so far. I chose to install Gnome 2.16 from Tinderbox which brought HAL along the way. When I booted the Gnome desktop, I saw a sum of six partitions, thanks to HAL not separating/hiding the drives that the RAID-1 volume consists of (a known issue). Maybe this is what you see? I also wonder, since I have never had a true PCI RAID controller together with FreeBSD, if every RAID volume behaves like this. I am familiar with the term "soft-raid controller" and clarifying, it means that it is half implemented as hardware, and half as software (something like win-modems). That's why FreeBSD sees the detailed "interior" of the array - the driver can control the whole RAID process, add/remove member disks and so on. I could be wrong about this, gotta get some hardware to test. Thanasis Rizoulis Electronic Computing Systems Engineer Greece