mike@vax.oit.udel.EDU ("Michael J. Porter") (02/09/88)
>From: MAILER!<local-info-vax-request@louie.udel.edu> 9-FEB-1988 07:26 >To: INFO-VAX%kl.sri.com@UDEL.EDU >Subj: Magtape versus QIO > > >I'm trying to write a labeled tape (not FOREIGN) using QIOW from a Fortran >program. It all worked fine with FOREIGN tapes but I can't seem to make it >work on labeled tapes. Here's what I'm doing -- ..... >plotting on an off-line Versatec RPM 850 plotting system. Thus I cannot >allow RMS-type stuff in the tape blocks, such as 4 bytes describing the >block size, nor 2 bytes describing the "record" size. I need complete >control over the content of the blocks and QIOW _seems_ the way to go. > I don't know what the problem is, but you can always mount the tape foreign and write tape labels as you see fit. We had a similar problem for XEROX 9270 page printers and had to write labeled tapes as foreign tapes. VMS seemed to always write ANSI level 3 tapes and the printer could only understand level 1. The tape formats should be described in the plotter's manual. ================================================================================ Michael Porter Systems Programmer Univeristy of Delaware Newark, DE 19716 Phone: (302) 451-6040 Internet: mike@vax.oit.udel.edu ------