From owner-freebsd-questions@FreeBSD.ORG Tue Apr 24 11:57:31 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 1109616A404 for ; Tue, 24 Apr 2007 11:57:31 +0000 (UTC) (envelope-from roberthuff@rcn.com) Received: from smtp02.lnh.mail.rcn.net (smtp02.lnh.mail.rcn.net [207.172.157.102]) by mx1.freebsd.org (Postfix) with ESMTP id AE63513C458 for ; Tue, 24 Apr 2007 11:57:30 +0000 (UTC) (envelope-from roberthuff@rcn.com) Received: from mr02.lnh.mail.rcn.net ([207.172.157.22]) by smtp02.lnh.mail.rcn.net with ESMTP; 24 Apr 2007 07:57:30 -0400 Received: from smtp01.lnh.mail.rcn.net (smtp01.lnh.mail.rcn.net [207.172.4.11]) by mr02.lnh.mail.rcn.net (MOS 3.8.3-GA) with ESMTP id NFK39157; Tue, 24 Apr 2007 07:57:29 -0400 (EDT) Received: from 65-78-26-179.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com (HELO jerusalem.litteratus.org.litteratus.org) ([65.78.26.179]) by smtp01.lnh.mail.rcn.net with ESMTP; 24 Apr 2007 07:57:27 -0400 From: Robert Huff MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17965.61609.108887.344283@jerusalem.litteratus.org> Date: Tue, 24 Apr 2007 07:57:29 -0400 To: freebsd-questions@freebsd.org In-Reply-To: <200704240508.l3O58JmQ005942@banyan.cs.ait.ac.th> References: <879633.68756.qm@web58109.mail.re3.yahoo.com> <1177390672.677.48.camel@creto.quietwind.net> <200704240508.l3O58JmQ005942@banyan.cs.ait.ac.th> X-Mailer: VM 7.17 under 21.5 (beta27) "fiddleheads" XEmacs Lucid X-Junkmail-Whitelist: YES (by domain whitelist at mr02.lnh.mail.rcn.net) Subject: Re: Backup media choices for FreeBSD servers X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Apr 2007 11:57:31 -0000 Olivier Nicole writes: > USB is a nice and cheap solution, as long as you don't have too > much data to back-up every time. > > If you have 40GB per day, that would take 10 hours... a bit too > much :) My setup (dump -> USB 2) processes 22.8 Gbytes in a hair over 5 hours. The average throughput is ~2 myytes/sec ... which is _way_ slower than it should be. (The problem has not been reporduced on other machines.) I'd prefer to be running of the 80 mbyte/sec LVD SCSI card. However, that configuration (tape drive, cartridges, cables) would start at $1500 and up. This has so far cost less than $200, with an incremental cost of < $50 per week of backup. Robert Huff