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Date:      Sat, 9 Oct 1999 12:38:27 -0500
From:      "Paul D . Schmidt" <pds@uberhacker.org>
To:        freebsd-questions@freebsd.org
Subject:   backup method reccommendation?
Message-ID:  <19991009123827.E12733@uberhacker.org>

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Hi, I recently bought an HP SureStore 5000eU tape drive and I'm trying to
come up with a good method for backing up my system.  I was reading about
dump/restore, but a dump backup couldn't be used to restore from a 3.2
system to a 3.3 system, which is one of the reasons I need to do it...

I thought about using tar, then I can just tar everything up and then
selectively restore files or directory trees....but I'm a bit confused about
the multi-volume aspect of tar....would the following command line prompt
me to change tapes after it has backed up 2GB? (and keep going thru as
many tapes as it needs?)

tar cvplML 1930 /

?
(I did some experiments and it uses the tape drive properly w/o an f arg)
Also, I would need to do something like mt rewind before starting my
backup, correct?  Since you have to explicitly state the tape size on the
command line I'm assuming I have to pretend the hardware compression isn't
there and just use the maximum guaranteed size of 2GB as opposed to "up to
4GB"?

I looked in the handbook, but it only gives a VERY high level blurb about
backups and doesn't provide any full solutions....does anyone have any
advice or URLs that talk about full backup impementations from command
lines to tape rotation techniques?

Thanks,
Paul

-- 
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Paul D. Schmidt                                          <pds@uberhacker.org>
UNIX Systems Programmer                                     FreeBSD Advocate
 "Trust the computer industry to shorten 'Year 2000' to 'Y2K.'  It was this
  kind of thinking that caused the problem in the first place." -Anonymous
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