From owner-freebsd-questions@FreeBSD.ORG Thu Jul 22 13:09:10 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 310F316A4CE for ; Thu, 22 Jul 2004 13:09:10 +0000 (GMT) Received: from osiris.itlegion.ru (osiris.itlegion.ru [212.248.52.90]) by mx1.FreeBSD.org (Postfix) with ESMTP id 395CA43D3F for ; Thu, 22 Jul 2004 13:09:09 +0000 (GMT) (envelope-from matrix@itlegion.ru) Received: from artem ([192.168.0.12]) by osiris.itlegion.ru (8.12.11/8.12.11) with SMTP id i6MD8xO1091454; Thu, 22 Jul 2004 17:09:06 +0400 (MSD) (envelope-from matrix@itlegion.ru) X-AntiVirus: Checked by Dr.Web [version: 4.31a, engine: 4.31b, virus records: 52459, updated: 22.07.2004] Message-ID: <022c01c46fed$16a179b0$0c00a8c0@artem> From: "Artem Koutchine" To: "Steve Bertrand" References: <014f01c46fd3$577710e0$0c00a8c0@artem> <3844.209.167.16.15.1090500751.squirrel@209.167.16.15> Date: Thu, 22 Jul 2004 17:09:05 +0400 Organization: IT Legion MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 cc: freebsd-questions@freebsd.org Subject: Re: Is it possible to migrate raid 5 array to another controller? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jul 2004 13:09:10 -0000 > First off, most of the people in the FreeBSD lists can get fairly upset > when they see people cross-posting to more than one list at a time. Sorry, i got the point. I just thought it was related to both list. Apperantly i thought wrong. > You'd be better off cloning the RAID array, say to perhaps a single IDE > disk, migrating the disks to the new controller and creating the array on > that controller, and if the machine does not come back up, clone back from > the IDE backup onto the new array. It might not be that easy, because it is a 1TB SATA RAID5 array and it does not fit on any single medium or device. At least some raid5 conrollers have an option of creating a new raid5 array without initialing it. Is this the thing you tried when migrating disk from raid5 to another controller? As i understand metadata about an array is stored not on the disks but in the non-volatile controller memory, so, when migrating disk one has to re-create the array in any case. However if controller bios software has an option to create an array w/o initializing it and raid5 has standard specs which all manufacturers follow then one should be able to migrade arrays from one controller to another w/o any problems. Any comment on this? Regards, Artem