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Date: Thu, 26 Dec 1996 15:28:58 -0800 (PST)
From: Doug White <dwhite@gdi.uoregon.edu>
Reply-To: dwhite@resnet.uoregon.edu
To: Andrew MacIntyre <andymac@bullseye.apana.org.au>
cc: freebsd-questions@freebsd.org, freebsd-hardware@freebsd.org
Subject: Re: Problems with HP T4000s tape drive
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On Thu, 26 Dec 1996, Andrew MacIntyre wrote:

> I have just acquired a HP T4000s tape drive for my primary FreeBSD
> machine, which is a mail/news/file/print server for my home net.
> 
> However, it doesn't want to do anything useful :-( (commands & results 
> below).

See the Handbook section 10.5.9 on how to properly initialize this tape.

> Dec 25 11:14:45 bullseye /kernel: st0(ncr0:4:0): ILLEGAL REQUEST asc:24,0 Invalid field in CDB
> Dec 25 11:14:45 bullseye /kernel: st0: Cannot set selected modest0: oops not queued
> Dec 25 11:14:45 bullseye /kernel: st0: oops not queued
> Dec 25 11:14:45 bullseye /kernel: st0: oops not queued
> Dec 25 11:14:45 bullseye /kernel: st0(ncr0:4:0): ILLEGAL REQUEST asc:24,0 Invalid field in CDB
> Dec 25 11:14:45 bullseye /kernel: st0: Cannot set selected mode

This is interesting.  Your NCR doesn't seem to appreciate the tape.  You
might verify that your cable is okay and termination correct.  Remember,
termination at the ends of the chain only.  The NCR will terminate itself
properly; make sure the last thing in the chain is terminated and that
nothing else is.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major