*BSD News Article 79476


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From: Rosty Cisyk <rosty@ottawa.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: SCSI Tape Problems
Date: Sun, 29 Sep 1996 02:42:51 +0000
Organization: Cyberus Online Inc.
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CC: rosty@nortel.ca

Hi,

I'm having problems using EXABYTE EXB-8200 tape drive under FreeBSD
2.1-RELEASE. When I try to use dump (I've tried tar as well), I get the
following messages:
#dump 0uf /dev/rst0 /other
DUMP: Date of this level 0 dump...
DUMP: Date of last level 0 dump...
DUMP: Dumping /dev/rsd0s1f(/other) to /dev/rst0
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 15796 tape blocks on 0.41 tape(s)
DUMP: dumping (Pass III) [directories]

After this the red ("writing") light comes one and stays steady. The
entire machine locks up indefinitely and I have to manualy reset it.

I know it's not a hardware problem because the same drive with the same
tape works fine with Cheyenne's ARCsolo for Windows. I don't get any
error messages neither on console nor in /var/log/messages.

What am I doing wrong? Couldn't find anything in the news archive, so
hopefully someone could help me to figure this out.

Thanks a lot,
Rosty.

P.S. Here's information about my system:

DX4-100 running FreeBSD 2.1-release

kernel is generic with aic0, sd0, st0, cd0, and scbus0 enabled

SCSI adapter: Adaptec AHA-1522 (ID 7) with Fast SCSI enabled

SCSI Tape (as recognized by FreeBSD):
(aic0:5:0): "EXABYTE EXB-8200 425A" type 1 removable SCSI 1
st0(aic0:5:0): Sequential-Access density code 0x0, 1024-byte blocks,
write-enabled

Other SCSI devices: CD-ROM (ID 3), Hard Drive (ID 0) [both SCSI-2]
I'm using brand new 8mm Sony 112M data cartridges.
The SCSI bus is properly terminated.