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Date:      Fri, 31 Mar 1995 03:31:35 -0800 (PST)
From:      davidk@ee.ubc.ca
To:        questions@FreeBSD.org
Subject:   Arhive Viper 150/PAS-16 difficulties
Message-ID:  <9503311131.AA20566@rwd6.ee.ubc.ca>

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Hi, I recently picked up a used Archive Viper 150 tape drive
to replace an old Wangtek 5099ES.  I am using the SCSI controller
on the PAS-16D.  I am getting an error message whenever I use
tar to backup some files with the Archive drive:

eg:  if I type "tar -cvf /dev/rst0 file1 file2 ... "

     The kernel responds with:
        "/kernel: nca0/5/0 data length underflow"

     (When I restore the files they are corrupted.)

Does anybody know what this error message means?  This never
occurs when I use the Wangtek 5099ES, only with the Archive
drive.  Do I need to configure the device somehow to use
a different recording density?  (ie does it matter that
the Arhive is QIC-150 while the Wangtek was QIC-24?)
Could the drive be faulty?

Any help would be appreciated.

-- 
David Kwan                             Email: davidk@ee.ubc.ca 
Graduate Studies (M.A.Sc Program)      Electrical Engineering
The University of British Columbia     Vancouver B.C. Canada



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