From owner-freebsd-isp@FreeBSD.ORG Tue Oct 23 22:04:11 2007 Return-Path: Delivered-To: isp@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5BF1C16A41B; Tue, 23 Oct 2007 22:04:11 +0000 (UTC) (envelope-from fjwcash+freebsd@gmail.com) Received: from smtp.sd73.bc.ca (smtp.sd73.bc.ca [142.24.13.140]) by mx1.freebsd.org (Postfix) with ESMTP id 40B5613C4B9; Tue, 23 Oct 2007 22:04:11 +0000 (UTC) (envelope-from fjwcash+freebsd@gmail.com) Received: from localhost (localhost [127.0.0.1]) by localhost.sd73.bc.ca (Postfix) with ESMTP id 9CC691A000B13; Tue, 23 Oct 2007 14:34:51 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at smtp.sd73.bc.ca Received: from smtp.sd73.bc.ca ([127.0.0.1]) by localhost (smtp.sd73.bc.ca [127.0.0.1]) (amavisd-new, port 10024) with LMTP id YiY-rLics2PB; Tue, 23 Oct 2007 14:34:44 -0700 (PDT) Received: from coal (s10.sbo [192.168.0.10]) by smtp.sd73.bc.ca (Postfix) with ESMTP id 8085A1A000B0B; Tue, 23 Oct 2007 14:34:44 -0700 (PDT) From: Freddie Cash Organization: School District 73 To: Gary Palmer Date: Tue, 23 Oct 2007 14:34:42 -0700 User-Agent: KMail/1.9.7 References: <471E2290.9040704@nlink.com.br> <200710231338.21368.fjwcash+freebsd@gmail.com> <20071023212437.GA3356@in-addr.com> In-Reply-To: <20071023212437.GA3356@in-addr.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200710231434.43201.fjwcash+freebsd@gmail.com> Cc: isp@freebsd.org Subject: Re: Backups Hardwares for FreeBSD X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2007 22:04:11 -0000 On October 23, 2007 02:24 pm you wrote: > On Tue, Oct 23, 2007 at 01:38:21PM -0700, Freddie Cash wrote: > > On October 23, 2007 09:34 am Paulo Fragoso wrote: > > > We have a FreeBSD mail server with 1TB RAID 6 using Areca ARC-1220 > > > controler, all works fine. > > > > > > Today our backups are made on DDS-4 tapes, they are very slow and > > > too small, this is our problem. What is a good (modern) alternative > > > to DDS-4 working on FreeBSD? > > > > For our multi-TB systems, we do disk-based backups using dar ... to > > another multi-TB system. :) > > > > We use a custom shell script to handle creating full and incremental > > backups and to rotate through multiple directories to keep a couple > > backups around. All via gigabit ethernet and NFS. And once a week > > we copy a full backup offsite via SSH tunnels to another multi-TB > > system via a gigabit fibre link. > > > > We're using RAID5 with hot-spares on 3Ware 9550SX controllers. > > Any issues withe RAID5 sets on the 3Ware controllers? I've heard bad > things about RAID5 on older 3Ware controllers when a disk fails. Just > wondering if the situation is improved. We've been using RAID5 on 3Ware 7506-4LP, 9500S, and 9550SX controllers from 3Ware without any issues. When a drive dies, we use the web GUI to remove the drive from the array, replace the drive with a new one, mark the new one as a hot-spare, and then watch as the controller rebuilds the array with the new drive. On the 7506 we have to power down the servers, but our big multi-TB systems have nice SATA hot-swap backplanes. Haven't had any issues running FreeBSD 5.x (twe), 6.x (twa), or Debian Linux 4.x (3w-9xxx) on these cards. Our largest array is currently 4 TB usable space (2x 2TB arrays combined via LVM). Most of our systems are < 1TB. -- Freddie Cash, LPIC-2 CCNT CCLP Network Support Technician School District 73 (250) 377-HELP [377-4357] fjwcash+freebsd@gmail.com