🚀 go-pugleaf

I'm having a problem writing to DAT tapes with my WangDAT 1300 connected to  
NeXTstation running NeXTSTEP 3.0

The problem began as I was making a backup and the script I was using
(Tarchive 0.71 from the sonata archives) complained of an unrecoverable medium
error.  Since then I can read, and move around (rewind, bsf, fsf etc.) old  
tapes using the drive, but I no longer seem to be able to write even an eof to  
any tape (I've tried 4 diiferent ones with no luck), much less a tar archive.  
I've rebooted many times, including a cold start of the DAT drive.  I've also  
run the head cleaning tape through the drive but with no visible effect. Here's  
what I get in the terminal window 

1 betenoir> mt -f /dev/nrst0 rewind
2 betenoir> mt -f /dev/nrst0 weof
/dev/nrst0 weof 1 failed: I/O error
3 betenoir> mt -f /dev/nrst0 status
Generic SCSI tape drive, residual=1
Sense Key       = 0x03
Sense Code      = 0x00
Sense Byte 0x13 = 0x00
Sense Byte 0x14 = 0x00
Sense Byte 0x15 = 0x00
Sense Byte 0x16 = 0x00
 
and more significantly here's what appears on the console

st: cmd = 0x10 sr_io_status = 2H


I can't seem to find any documentation on what this is telling me or more  
importantly how to fix it. I would appreciate any help from any kind soul who  
understands DAT drives or the mt driver.



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Dave Rebnord		 |  drebnord@betenoir.syr.edu (NeXTmail)
Dept. of Mathematics	 |  (315) 443-1585 (voice)
Syracuse University	 |  (315) 443-1475 (fax)
Syracuse NY 13244-1150	 |