From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: PCI ATA EIDE cards and kernel drivers Date: Wed, 23 Apr 2008 13:12:47 -0400 Message-ID: <480F6E0F.80702@tmr.com> References: <18446.50.8995.663510@sail.stoffel.home> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <18446.50.8995.663510@sail.stoffel.home> Sender: linux-raid-owner@vger.kernel.org To: John Stoffel Cc: Keith Roberts , linux-raid@vger.kernel.org List-Id: linux-raid.ids John Stoffel wrote: > I find the cost of CD-R media and DVD+R, as well as the issues with > longevity, to be my biggest concerns. For those types of media, > having a very robust and redundant easy to recover format would be > key. Haven't seen it done yet, though it's been talked about. An > Archive filesystem, not a general access one. > Let me make one comment on that. To back up files of reasonable (<1GB) files, you can build a list of files which will fit on a single DVD (a series of lists actually), and backup the files to a DVD, either in ISO format or using the loopback mount to make an ext2 filesystem you can write to a DVD, or a tar, cpio, you get the idea. The tool to make the lists of files which will fit is "breaker" and is on www.tmr.com/~public/source for your enjoyment. The other tool is dvdisaster, which builds software ECC for images you are going to burn. You can make DVDs with 3.3GB data + ECC on each DVD, or 4.4GB data per DVD and keep the ECC files separately, whatever pleases you. The recovery mode does work, I used scissors to scratch a DVD with my initials, then recovered the data. Both programs have enough documentation for most users. -- Bill Davidsen "Woe unto the statesman who makes war without a reason that will still be valid when the war is over..." Otto von Bismark