From owner-freebsd-questions Wed Aug 15 23:15: 2 2001 Delivered-To: freebsd-questions@freebsd.org Received: from isy.liu.se (isy.liu.se [130.236.48.10]) by hub.freebsd.org (Postfix) with ESMTP id AF24C37B41E for ; Wed, 15 Aug 2001 23:14:54 -0700 (PDT) (envelope-from mj@isy.liu.se) Received: from lagrange.isy.liu.se (lagrange.isy.liu.se [130.236.49.127]) by isy.liu.se (8.11.4/8.11.4) with ESMTP id f7G6Ekh27380; Thu, 16 Aug 2001 08:14:46 +0200 (MET DST) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Thu, 16 Aug 2001 08:15:25 +0200 (CEST) From: Micke Josefsson To: (Gary W. Swearingen) Subject: Re: Backup suggestions Cc: freebsd-questions@FreeBSD.ORG, Kory Hamzeh Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 15-Aug-01 Gary W. Swearingen wrote: >> On Tue, Aug 14, 2001 at 07:11:08PM -0700, Kory Hamzeh wrote: >> > >> > That is the best tool to use for this? tar? cpio? dump? dd? > > I'd think dd would be best if you be sure to grab and save the entire > partitions and the two disks have the same heads/cyl, sects/track, > and maybe even cyls/drive (though I'm guessing the latter could be > different as long as your copied parts fit). > > I haven't tried any of that, so testing would be mandatory. Since dd makes a sector for sector clone the disk copied to must not have any bad sectors. When dumping an entire partition is always use - dump. For individual files and trees I use tar and cpio. > > > BTW, you might also consider what happend to my bro. Motherboard > went nuts and fried itself and his disk. I'm guessing that a second > disk would have been fried as well. > > For this reason, I've put my backup disk on an old 486 and send data > via NICs and a cross-over cable. Unfortunately, FreeBSD goes belly > up during the FTP transfer and massively corrupts the OS disk (a > small one, not the backup one). Twice. Don't know what the problem > is. memtest86 showed memory OK. Probably will try NFS xfrs next. > > BTW, I've been using afio with compression for several years (only > a few times per year, to tape) and use it's true-verify option > which never complains. Only used it for recovery once. Using > compression, and not doing some junk partitions (like ISO images, > etc,) you can probably get multiple backups on your backup disk > which gives you a better chanch of recovering from human errors > (like when you've backed up yesterday's mistaken file changes.) > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message ---------------------------------- Michael Josefsson, MSEE mj@isy.liu.se This message was sent by XFMail running on FreeBSD 4.3-STABLE ---------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message