SCSI tape ejects on device close.

[Chip Rosenthal]

In article <1991May28.142642.10422 at swdsrv.edvz.univie.ac.at>
	mah at wu-wien.ac.at writes:
>This works, except that on every device close, the tape gets *ejected*
>[...] Any clues/minor number magic/kernel patches? 

I think you need to change the minor device number of the tape.
Unfortunately, the required information is missing from the 2.3.3GT
manpages.  Here is what the UNIX scsi(HW) manpage says:

		    SCSI Tape Minor Devices

			 Bits

		7  6  5  4  3  2  1  0   Description
		________________________________________________

		X  X  -  -  -  -  -  -   Unit (LUN)
		-  -  X  -  -  -  -  -   No unload on close
		-  -  -  X  -  -  -  -   High density (6250 BPI)
		-  -  -  -  X  -  -  -   No rewind on close
		-  -  -  -  -  X  X  X   Unused(reserved)

You want to create a tape device with minor number 2^5 + 2^3 = 32 +
8 = 40 to suppress the unload on close.  BTW...I believe bit three
should read `Rewind on close' and not `No rewind on close'.  I submitted
a bug report to SCO on this just last weekend.

-- 
Chip Rosenthal     <chip at chinacat.Unicom.COM>  |  Don't play that
Unicom Systems Development      512-482-8260   |    loud, Mr. Collins.