From owner-freebsd-questions@FreeBSD.ORG Fri Sep 21 11:30:09 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 35C6016A419 for ; Fri, 21 Sep 2007 11:30:09 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: from sigma.octantis.com.au (ns2.octantis.com.au [207.44.189.124]) by mx1.freebsd.org (Postfix) with ESMTP id 0103213C4BC for ; Fri, 21 Sep 2007 11:30:08 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: (qmail 2207 invoked from network); 21 Sep 2007 06:30:08 -0500 Received: from 124-170-90-150.dyn.iinet.net.au (HELO localhost) (124.170.90.150) by sigma.octantis.com.au with (DHE-RSA-AES256-SHA encrypted) SMTP; 21 Sep 2007 06:30:07 -0500 Date: Fri, 21 Sep 2007 21:30:03 +1000 From: Norberto Meijome To: Wojciech Puchar Message-ID: <20070921213003.3ed9eac7@meijome.net> In-Reply-To: <20070921131332.H14163@wojtek.tensor.gdynia.pl> References: <46F39005.1050208@gmail.com> <20070921131332.H14163@wojtek.tensor.gdynia.pl> X-Mailer: Claws Mail 3.0.1 (GTK+ 2.10.14; i386-portbld-freebsd6.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Subhro Kar , dhaneshk k , freebsd-questions@freebsd.org Subject: Re: Cheaper backup mechnism for a server 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: Fri, 21 Sep 2007 11:30:09 -0000 On Fri, 21 Sep 2007 13:14:25 +0200 (CEST) Wojciech Puchar wrote: > > You can try to create a Mirror using RAID. You can either create a > > software or a hardware (recommended) managed Mirror. In case of a disk > > both are software. while the "software" one you talking about is gmirror - > very portable and easy to use contrary to BIOS-based "hardware" one. > > and with gmirror is very easy to take whole disk snapshot raid is a good solution for avoiding data loss due to hard disk failure (at different rates depending on the raid type ). But it wont help you if someone accidentally or on purpose delete files. Raid will happily replicate the deletion across all your disks :) Raid , fail-over solutions and the like go hand in hand with backups, each case needing it's own analysis : server/s setup, data, frequency of change of the data, how fast do you want to recover it , budget will (well, should :D ) all affect your final decision. Whatever path you go down by, make sure you test the "getting the data back and the server back online" step ;) it's too late by then to realise you should've backed up /etc and /var/ , for example. _________________________ {Beto|Norberto|Numard} Meijome "He has no enemies, but is intensely disliked by his friends." Oscar Wilde I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned.