I would go with TYPE UNSUPPORTED DEVCLASS TAPE, too. I've never tried it with tape devices so can't be sure, but it seems to be the best way to ma ke CP keep its cotton pickin' hands (or ccw tables) off. The good news is, y ou can try that with just some SET RDEV commands.
(Disclaimer: FSI is not the vendor of whatever this thing is that Richard is using.) -- Gary Eheman http://www.funsoft.com