From owner-freebsd-geom@FreeBSD.ORG Wed Dec 13 09:45:16 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4270616A49E for ; Wed, 13 Dec 2006 09:45:16 +0000 (UTC) (envelope-from cochard@gmail.com) Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.238]) by mx1.FreeBSD.org (Postfix) with ESMTP id C024A43C9E for ; Wed, 13 Dec 2006 09:43:47 +0000 (GMT) (envelope-from cochard@gmail.com) Received: by nz-out-0506.google.com with SMTP id i11so51777nzh for ; Wed, 13 Dec 2006 01:45:15 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=EJDDJcMAWx7mG+Y/XuosdX1JtP0SeskF+A5nEUO6+cChH3GPh75FLkmyJZ7s2/j3OSCsFHO7VQhmA6gXkBJzlj7kZJ2T4iAMFoQbb7V+aV/VWDcuQDnxweG3CuWYiXs16W6NRg3rhP8nPrG/4Z+mOK423L25jREjTqTdG4HIqG8= Received: by 10.65.206.7 with SMTP id i7mr1051221qbq.1166003114759; Wed, 13 Dec 2006 01:45:14 -0800 (PST) Received: by 10.65.145.6 with HTTP; Wed, 13 Dec 2006 01:45:14 -0800 (PST) Message-ID: <3131aa530612130145l77ebb6f6ga7d4ac54716b5cc0@mail.gmail.com> Date: Wed, 13 Dec 2006 10:45:14 +0100 From: "Olivier Cochard-Labbe" Sender: cochard@gmail.com To: "Ulf Lilleengen" In-Reply-To: <20061211164844.GA3827@vimes.studby.ntnu.no> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <3131aa530612110522y7b8ccad5k9d5735277b4d5ffa@mail.gmail.com> <20061211164844.GA3827@vimes.studby.ntnu.no> X-Google-Sender-Auth: c4ab0d95bf523dbe Cc: freebsd-geom@freebsd.org Subject: Re: geom raid5 module X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Dec 2006 09:45:16 -0000 2006/12/11, Ulf Lilleengen : > However I am interested to hear of your problems with gvinum raid5. Is it= just > stability-problems or any spesific bugs you encounter? > Hi Ulf, Here is, for example, the first problem problem with geom vinum RAID5: I have 4 disks: - ad0: 203MB - ad1: 101MB - ad2: 306MB - ad3: 101MB If I create a raid 5 volume with these disk, can you confirme that the theorical size should be 300MB (4 disks of the smallest drive: 100MB) ? It's the size given with graid5 and with RAID caclulator (http://dorm.tunkeymicket.com/raidcalc/). But with geom vinum I obtain a 611MB disk: $ /sbin/gvinum list 4 drives: D disk_da3 State: up=09/dev/da3s1a=09A: 0/101 MB (0%) D disk_da2 State: up=09/dev/da2s1a=09A: 0/306 MB (0%) D disk_da1 State: up=09/dev/da1s1a=09A: 0/101 MB (0%) D disk_da0 State: up=09/dev/da0s1a=09A: 0/203 MB (0%) 1 volume: V raid5 State: up=09Plexes: 1=09Size: 611 MB 1 plex: P raid5.p0 R5 State: up=09Subdisks: 4=09Size: 611 MB 4 subdisks: S raid5.p0.s3 State: up=09D: disk_da3 Size: 101 MB S raid5.p0.s2 State: up=09D: disk_da2 Size: 306 MB S raid5.p0.s1 State: up=09D: disk_da1 Size: 101 MB S raid5.p0.s0 State: up=09D: disk_da0 Size: 203 MB For the second problem, you can found it on the mailing list archive: http://lists.freebsd.org/pipermail/freebsd-geom/2006-March/001114.html (I don't test with FreeBSD 6.2 prerelease, if I still have this second prob= lem) Regards, Olivier --=20 Olivier Cochard-Labb=E9 FreeNAS main developer http://www.freenas.org Skype: callto://ocochard