I've been carting files from home to school on DDS1 90M tapes for a while
now, using an Archive Python on my NetBSD/i386:

        st0 at scsibus0 targ 4 lun 0: <ARCHIVE, Python 28454-XXX, 4.BL> SCSI2 1/sequential removable

and an Archive Python on a Sun 670MP (Solaris 2.5.1):

        st11:   <Archive Python 4mm Helical Scan>


with no problems.  Today I began writing some tapes on my O2, using:

        Device: ARCHIVE: Python 25501-XXX6320

and although my NetBSD box can read these tapes, I get zillions of the
following kernel.debug messages:

Jan 21 23:13:38 cthulhu /netbsd: st0(aic0:4:0):  Check Condition on opcode 0x8
Jan 21 23:13:38 cthulhu /netbsd:     SENSE KEY:  No Additional Sense
Jan 21 23:13:38 cthulhu /netbsd:                 Incorrect Length Indicator Set
Jan 21 23:13:38 cthulhu /netbsd:    INFO FIELD:  9728
Jan 21 23:13:38 cthulhu /netbsd:      ASC/ASCQ:  No Additional Sense Information
Jan 21 23:13:38 cthulhu /netbsd: 

I'm sure this must be yet-another-IRIXism.  Can someone enlighten me on the
meaning of that message so I can beat on the appropriate part of IRIX?

I've "solved" the problem temporarily by dropping kernel.debug from 
syslog.conf but syslogd still consumes 75% of the CPU dropping those messages
during an extract. ;-(

-wps