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Date:      Wed, 27 Sep 2006 23:25:23 +0200
From:      "Philippe Lang" <philippe.lang@attiksystem.ch>
To:        "freeBSD" <freebsd-questions@freebsd.org>
Subject:   SSH connection cut during dump on tape
Message-ID:  <6C0CF58A187DA5479245E0830AF84F421D12CF@poweredge.attiksystem.ch>

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Hi,

While doing a backup on an HP Ultrium LTO1 tape, my ssh connection froze, and since then, I'm not able to use the tape device anymore.

xeon# mt -f /dev/nsa0 rewind
mt: /dev/nsa0: Device busy

xeon# dump -0uaL -f /dev/nsa0 /dev/da0s1a
  DUMP: Date of this level 0 dump: Wed Sep 27 23:21:56 2006
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping snapshot of /dev/da0s1a (/) to /dev/nsa0
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 56238 tape blocks.
  DUMP: Cannot open output "/dev/nsa0".
  DUMP: Do you want to retry the open?: ("yes" or "no")

Is there a way to reset the tape device without rebooting the server? I'm using the 6.0 version.

---------------
Philippe Lang
Attik System


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