From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1MVP4v-0000OR-30 for garchives@archives.gentoo.org; Mon, 27 Jul 2009 12:13:17 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 8B69FE0457; Mon, 27 Jul 2009 12:13:15 +0000 (UTC) Received: from smtpout.karoo.kcom.com (smtpout.karoo.kcom.com [212.50.160.34]) by pigeon.gentoo.org (Postfix) with ESMTP id 4C17CE0457 for ; Mon, 27 Jul 2009 12:13:15 +0000 (UTC) Received: from unknown (HELO compaq.stroller.uk.eu.org) ([213.152.39.90]) by smtpout.karoo.kcom.com with ESMTP; 27 Jul 2009 13:13:08 +0100 Received: from [192.168.1.71] (unknown [192.168.1.71]) by compaq.stroller.uk.eu.org (Postfix) with ESMTP id D3DD0137D3E for ; Mon, 27 Jul 2009 13:12:57 +0100 (BST) Message-Id: From: Stroller To: gentoo-user@lists.gentoo.org In-Reply-To: <4A6D8572.8060300@gmx.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org Mime-Version: 1.0 (Apple Message framework v935.3) Subject: Re: [gentoo-user] LiveCD installation not recognizing megaraid RAID set Date: Mon, 27 Jul 2009 13:12:51 +0100 References: <5185b3ce0907270145q31445ccelc77437cae2bc87d7@mail.gmail.com> <4A6D8572.8060300@gmx.net> X-Mailer: Apple Mail (2.935.3) X-Archives-Salt: 997b496c-d9c2-41d4-a186-70f757f2b39c X-Archives-Hash: 2ee892966fee6e2bda39229307cd3995 It took Carlos' reply for me to reread & make sense of the original =20 post. On 27 Jul 2009, at 11:46, Carlos wrote: > Ho-Ki Au a =E9crit : >> >> ... In the BIOS settings, all three disks were added to the =20 >> controller for a RAID5 set up. ... Under /dev, I only saw sda, but =20= >> there was no sdb, sdc. So it looked like there was only one disk =20 >> but the system did not recognize it as a raid set. It looks like *not only* did you add them to the controller, but you =20 configured them as a single drive. Therefore this looks correct. The whole point of RAID is that multiple disks should appear to the =20 host o/s as a single drive. > As mentioned by Neil, dmraid is for software RAID management. If =20 > you want to manage your RAID controller or disk sets from Linux, =20 > you'll have to find management software capable of doing this. Try =20= > the server manufacture's site or the RAID manufacture's web site to =20= > see if such software exists. A Google for "PERC5 Linux" reveals: = http://blog.gtuhl.com/2009/03/11/monitoring-dell-perc5-and-perc6-disks-in-= arch-linux/ Then searching Portage: $ eix sys-block/mega * sys-block/megacli Available versions: ~1.01.40!m!s!t ~2.00.15!m!s!t ~4.00.11!m!s!t Homepage: http://www.lsi.com/ Description: LSI Logic MegaRAID Command Line Interface =20 management tool * sys-block/megactl Available versions: ~0.4.1 Homepage: http://sourceforge.net/projects/megactl/ Description: LSI MegaRAID control utility * sys-block/megamgr Available versions: ~5.20!m!s!t ~5.20-r1!m!s!t Homepage: http://www.lsi.com Description: LSI Logic MegaRAID Text User Interface =20 management tool * sys-block/megarc Available versions: ~1.11!m!s!t {doc} Homepage: http://www.lsi.com Description: LSI Logic MegaRAID Text User Interface =20 management tool Found 4 matches. $ Viewing the RAID using the correct LSI utility should show the =20 individual drives. I use the tw_cli for my 3ware controller. This is how it it appears on =20= my system (the LSI utility will have a different name & syntax): $ sudo tw_cli /c0/u1 show Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB) ------------------------------------------------------------------------ u1 RAID-5 OK - - - 64K 931.303 u1-0 DISK OK - - p4 - 465.651 u1-1 DISK OK - - p5 - 465.651 u1-2 DISK OK - - p6 - 465.651 $ Stroller.