From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Dr. David Alan Gilbert" Subject: Re: RAID backup Date: Fri, 4 Oct 2002 14:24:19 +0100 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <20021004132419.GF710@gallifrey> References: <1033735943.31839.12.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1033735943.31839.12.camel@irongate.swansea.linux.org.uk> To: Alan Cox Cc: Linux Kernel Mailing List , linux-raid@vger.kernel.org List-Id: linux-raid.ids * Alan Cox (alan@lxorguk.ukuu.org.uk) wrote: > > The problem with disks is you still have to archive them somewhere, and > they are bulky. I also dont know what studies are available on the > degradation of stored disk media over time. Not sure about that; DLT tapes are pretty bulky themselves; I think the difference between say a set of 4 DLT tapes and a single Maxtor 320 in caddy would be minimal. As for stored media, I think Maxtor are quoting 1M hours MTTF - (I hate to think how you measure such a figure) - for the 320G, and that is probably longer than I'd trust either the tape or the drive to survive. > Capacity is not a problem, 3ware do a 12 channel sata card, with maxtor > drives that comes in at 320x12 = 3.5Tb Well to me there are two questions: 1) Price with caddy/drive - especially when you need to have multiple backup sets. 2) Linux serial/ata working reliably with hot swapping. If both those came out on the right side then I'd happily swap to discs. Dave ---------------- Have a happy GNU millennium! ---------------------- / Dr. David Alan Gilbert | Running GNU/Linux on Alpha,68K| Happy \ \ gro.gilbert @ treblig.org | MIPS,x86,ARM, SPARC and HP-PA | In Hex / \ _________________________|_____ http://www.treblig.org |_______/