Jarkko Teppo <jate(a)uwasa.fi> wrote:
  Does anyone know of the autochanger extensions for HP
35401 eight tape
 jukebox ? It's based on an HP 9144 cartridge drive and is compatible
 with it in normal operation, but I can't find the autochanger extensions
 *anywhere*! 
Hmm, I wonder if that's what the CS/80 "Set Volume" command is for.
The command is 0x40, with the volume number (0-7) or'd into the
three least significant bits.
  If nothing helps I'll just chuck it back to my
screaming dual-processor,
 WIN/TCP enabled HP 9000/550:) 
You know with a hook like that I can't resist, right?  I'm (or was,
anyway, TWG is pretty much gone now) the last maintainer of WIN/TCP
for the HP9000 series 500.
How does the changer work from HP-UX on the 550?  Can it be told to
pick a specific cartridge, or does it just step through cartridges as
each is unloaded?  We didn't have a changer; well, we did, but it was
either me or the guy who did the backups.
-Frank McConnell