Date: Wed Jul 07 1993 - 14:00:14 CDT

The original message:
>>Hello managers,
>>Can I make use of your collective wisdom for the following problem:
>>We have recently acquired an Artecon DSU0-300C1 4mm DAT system and
>>hooked it on our Sun 4_370 running SunOS 4.1.2.
>>During booting we get the message:
>> tornado vmunix: st1: warning, unknown tape drive found
>>After booting, the device seems to work properly with dump and tar.
>>A commercial package however always finds the drive off-line, but as
>>this is a new release which for the first time is supposed to support
>>DAT, I'm not quite sure what to think of it...
>>The Artecon housing hides a HP35480A drive unit. SCSI-ID is 5.
>>So, what am I to do about the warning?
To put the record straight: the warning did not occur at boot time, but
rather at the first access of the device.
There was a general consensus that I should modify some configuration
files and rebuild the kernel. Steve Brown and Stefan Frick included a
previous posting from Keith Porterfield (see below) upon which I based
my "solution".
============== Included Message ==================
Add the following new device: (note the block size of 10240)
/* HP 4mm Helical Scan */
        "HP 4mm DAT", 2, "HP", ST_TYPE_HP1, 10240,
        6000, 6000,
        { 0x00, 0x00, 0x00, 0x00 },
        { 0, 0, 0, 0 }
Add this define to the list:
#define ST_TYPE_HP1 0x29 /* HP */
Keith Porterfield
Sysadmin, Avalanche Development
============== End of Included Message ==============
As we run 4.1.2 we don't have either /usr/kvm/sys/scsi/targets/st_conf.c
or /usr/kvm/sys/scsi/targets/stdef.h.
However, I did find /usr/kvm/sys/sundev/streg.h which I modified to include:
#define ST_TYPE_HP1 0x29 /* Artecon (HP) DAT */

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