*BSD News Article 71909


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From: jbh@labyrinth.net.au (John Hartley)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: tandberg 4100 scsi tape failure (FreeBSD 2.1)
Date: 24 Jun 1996 12:58:01 GMT
Organization: Labyrinth Connections Pty Ltd
Lines: 30
Message-ID: <4qm3cp$hni@minotaur.labyrinth.net.au>
NNTP-Posting-Host: portal-as16.labyrinth.net.au
X-Newsreader: News for Windows NT X1.0-74

I have been unable to get FreeBSD 2.1 to work with my
Tandberg SCSI tape drive.
My configuration is:
IBM 350/486 DX100 32 MB with Adaptec 2940 PCI SCSI card.
The tape drive is recognised at bootup as follows:
(ahc0:3:0): "TANDBERG TDC 4100 J04:" type 1 removeable SCSI 2
st(ahc0:3:0): Sequential-Access density code 0x0, 512-byte blocks, write-enabled

However when i go to access the tape drive (using the test suggested
in the news group archive):
dd if=/dev/zero of=/dev/rst0 count=100 objs=512
I get the following error message:

st0(ahc:3:0): ILLEGAL REQUEST csi: 0,8,0 asc:24,0 Invalid field
  in CDB fielod replacement unit 2
st0: Cannot set selected modest0: oops no queued
..

It then goes on to repeat the operation a number of times until I Ctrl^c out.
I previously had FreeBSD 2.0.5 installed (on a 386/Adaptec 1542CP) which came
up with the same message when I tried to access the tape drive (i also get this with tar).

Any suggestion/help would be appreciated.

Thanks for any help.

John Hartley.
jbh@labyrinth.net.au
Graphica Software Pty. Ltd.