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Date:      Tue, 22 Oct 2002 17:35:47 -0400
From:      "Chad Morland" <chad.morland@inquent.com>
To:        <freebsd-questions@freebsd.org>
Subject:   dump help
Message-ID:  <010501c27a12$fbe60130$1f02000a@downtown>

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Take a look at the estimated number of tapes needed below. Now, I'm not
sure why it would need almost 1500 DLT IV tapes to backup 65G of data.
Can someone possibly explain this to me? I am having a hell of a time
trying to backup this data. I have hardware compression turned on on the
drive as well.

backup# mt rewind
backup# dump 0bfun 126 /dev/nsa0 /dev/vinum/striped
  DUMP: Date of this level 0 dump: Tue Oct 22 17:11:19 2002
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /dev/vinum/striped to /dev/nsa0
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 84906026 tape blocks on 1498.69 tape(s).
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
  DUMP: Closing /dev/nsa0
  DUMP: Change Volumes: Mount volume #2
backup# df -k
Filesystem         1K-blocks     Used     Avail Capacity  Mounted on
/dev/da0s1a           302350    50860    227302    18%    /
/dev/da0s1f          5426350   614662   4377580    12%    /usr
/dev/da0s1e          2015918     2068   1852578     0%    /var
procfs                     4        4         0   100%    /proc
/dev/vinum/striped 454465653 64241886 353866515    15%    /backup


-CM


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