Date: Wed, 3 Jul 2002 07:42:18 -0400 (EDT) From: "baszd" <baszd-meg@excite.com> To: bts@babbleon.org Cc: freebsd-questions@FreeBSD.ORG Subject: Re: How to get back FreeBSD-dumped data with linux-restore. Message-ID: <20020703114218.364BE8AEBD@xmxpita.excite.com>
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Hi! > This varies from tool to tool, and you should read up on them, but Yeah, I should read about tar and pax. I wonder how to get back one file out of a whole tgz or whatever file. Creating an archive and redirect it via ssh to the tape shouldn't be very difficult. > what you use to do the backup. Since tapes are *NOT* random-access devices you > basically have to read everything from the start of the tape onward to > find > anything on the tape, but this is true regardless of the software tool > involved. Yes, of course. But it is confortable to work with dump/restore particular in interactive mode. I see my directories within seconds (if the tape position is right) and can choose the files I want to restore by marking them. > entirely i/o bound so that that other tools won't slow you down much. The question is more getting back files quickly rather than put them however on tape. > that yourself with a perl script or something. I'm using a simple bashscript wich is executed by cron. > You could use afs if you want a really high level of security. You must > somehow be getting the data for multiple machines now; how do you do > that? > Note also that if you wnat to go for ultimate security you an physically > move > the disk since each can mount the other's files directly. Ok, maybe afs. Never used it before. I have one FreeBSD fileserver and a few Debian ones. I back up like that: # ssh -l root fileserver "dump -h0 -a -u -f - /mnt/raid" > /dev/nst0 That works with FreeBSD and Linux, but -as said- I can't restore (the FreeBSD-dumps). Moving the RAID is not a good idea. It weighs about 20 kg ;) and is connected to a RAID-controllercard... > | That would be feasible, but somehow circumstantial. > > I'm not sure that I understand this one. Circumstantial means: I have to install FreeBSD and Debian new (including the settings and things which have to work). Furthermore I have to boot this or that OS depending on the file I need to restore. > | out the dump | dd-thing first and see how reliable it is. > > That's surely easiest if this is a one-shot problem. It was easy, but it seems to work unly with small amounts of data. I backed up my /tmp without flaws and my /mnt/raid dump leads to: Tape read error while restoring However I think I'll investigate in tar/pax and mounting that slice over the network. Thx! I'll post a proper solution soon (hopefully). Regards, bm. ------------------------------------------------ Join Excite! - http://www.excite.com The most personalized portal on the Web! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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