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Date:      Tue, 12 Aug 1997 17:07:14 -0400 (EDT)
From:      David Gilbert <dgilbert@jaywon.pci.on.ca>
To:        bugs@freebsd.org
Subject:   dump unreliable?
Message-ID:  <199708122107.RAA08996@repeat.pci.on.ca>

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	Now... I havn't exhaustively tested this, but I recently tried
dumping a couple of filesystems onto a tape, and then restoring them.
The restore came up with less than half the files on the origional
filesystem --- and a whole pile of messages about skipping blocks on
the tape and so on.

	I've been trying this with multiple tapes and different
systems.  I even added a second SCSI card (to separate the tape and
disk drives).

	You might think that is end of story.  However, when I tar'd
the same partition to tape (tar -cvlf /dev/rst0 /) and then tested the
tar tape (tar -dvf /dev/rst0), no errors were reported (save
/dev/ttyp0 had changed owners, but that was a known thing).

	This has all left me rather puzzled.  Is dump reliable at all?

Dave.

-- 
============================================================================
|David Gilbert, Velocet Communications.       | Two things can only be     |
|Mail:       dgilbert@velocet.net             |  equal if and only if they |
|http://www.velocet.net/~dgilbert             |   are precisely opposite.  |
=========================================================GLO================



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