From: Steinar.Haug@delab.sintef.no (Steinar Haug)
Newsgroups: comp.sys.hp
Subject: Re: QIC tapes on HP 730 systems
Date: 1 Jan 93 21:01:26 GMT
Organization: SINTEF DELAB, Trondheim, Norway.

curt@harbor.ecn.purdue.edu (Curt Freeland) writes:
> I am also trying to connect the QIC 150 cart tape drive to the 
> system.  The hardware seems to know the drive is out there as 
> SCSI ID 4, as shown by the system finding it as a bootable device. 
> The problem is that I cannot get HPux to talk to the drive via tar, 
> dd, mt, ct, or any other command I try.  Again, I cannot find the
> equivalent of the "conf/MACHINE_NAME" file in the kernel stuff to 
> know what unit number a SCSI tape drive should be.  Nor can I seem 
> to make a major/minor device capable of talking to the drive as 
> SCSI ID 4.

The following articles should help you. Note that you normally want the
Berkeley style devices.

Steinar Haug, system/networks administrator
SINTEF DELAB, University of Trondheim, NORWAY
Email: Steinar.Haug@delab.sintef.no, 
	sthaug@idt.unit.no, steinar@tosca.er.sintef.no
----------------------------------------------------------------------
From: lampi@polari.com
Subject: Re: Help attaching 1/4" tape to HP700
Date: Fri, 1 May 1992 23:58:37 GMT

>>I have an HP720 running HP-UX 8.07 and have a 1/4" Archive SCSI tape drive
>>I would like to use.  Looking through the man pages for devices seems to
>>indicate that only HP-IB or 1/2" tape drives are supported via the ct and mt
>>devices.  I know that the DAT SCSI drives are supported, so it seems like the
>>1/4" SCSI should but usable, but I sure can't find anything that describes
>>how to set it up.  Any help would be greatly appreciated.
>
>If you are talking about the QIC format tapes, HP apparently does not 
>support them.  We had this problem hooking up 1/4" drives to HP300/400 series 
>machines several years ago.  Interesting considering that Apollo use to use 
>this format.
>
>We found that you could hook up the drive and it would be seen by the system
>but attempts to read or write to it would fail.
>

Try the following major & minor numbers on your 8.07 system:
                   54     0x201#4b   - Berkeley no rewind
                   54     0x201#4a   - Berkeley rewind
                   54     0x201#49   - AT&T no rewind
                   54     0x201#48   - AT&T rewind
where # is replaced by the SCSI ID of the tape drive. Note that the device
should be set up as a character device.

-- 
-----
Michael Lampi            uunet!polar!lampi   or   lampi%polari
R Squared                16398 NE 85th St., Suite 101, Redmond, WA 98052
                         (206) 883-3116    fax (206) 883-2676
----------------------------------------------------------------------
From: stuart@TIVOLI.COM (Stuart Jarriel)
Subject: Re: 3rd party QIC tape drives
Date: 27 Aug 92 23:19:13 GMT

The only device files I know of that work wih 3rd party tapes are these:

------------------------------------------------------------------------------


================
QIC Tape Drives
================

Type		Device		Major #		Driver		Minor #
----		------		-------		------		-------
QIC, Berkley,	/dev/rmt/#mn	54		scsitape	0x201#4b
no rewind

QIC, Berkley,	/dev/rmt/#m	54		scsitape	0x201#4a
auto rewind

QIC, AT&T,	/dev/rmt/#m	54		scsitape	0x201#49
no rewind

QIC, AT&T,	/dev/rmt/#m	54		scsitape	0x201#48
auto rewind


==================
8mm Tape Drives
==================



Type		Device		Major #		Driver		Minor #
----		------		-------		------		-------
Exabyte, 	/dev/rmt/#mn	54		scsitape	0x201#43
Berkely,
no rewind

Exabyte, 	/dev/rmt/#m	54		scsitape	0x201#42
Berkely,
auto rewind

Exabyte, AT&T,	/dev/rmt/#m	54		scsitape	0x201#41
no rewind

Exabyte, AT&T,	/dev/rmt/#m	54		scsitape	0x201#40
auto rewind
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