Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!usc!rpi!uupsi!sunic!ugle.unit.no!hanche
From: hanche@imf.unit.no (Harald Hanche-Olsen)
Newsgroups: comp.sys.apollo
Subject: Re: 8mm tape drive for Apollos
Message-ID: <HANCHE.91Mar16152634@hufsa.imf.unit.no>
Date: 16 Mar 91 14:26:34 GMT
References: <9103151600.AA05184@richter.mit.edu>
Sender: news@ugle.unit.no
Organization: The Norwegian Institute of Technology, Trondheim, Norway.
Lines: 21
In-Reply-To: krowitz@RICHTER.MIT.EDU's message of 15 Mar 91 16:00:56 GMT

In article <9103151600.AA05184@richter.mit.edu> krowitz@RICHTER.MIT.EDU (David Krowitz) writes:

   The standard Unix utilities, such as "tar", "dd", "mt" and the like, all
   access the tape drive via a Unix device file (eg. /dev/rmt0). As of SR10.x,
   Apollo has supplied device files for SCSI tape drives attached to either
   the native SCSI port of the DN2500 or the SCSI port of the multi-function
   WD7000 disk controller used on most DN3500 and DN4500 machines. These device
   files are /dev/rmts8 and /dev/rmts12 (rewind and no-rewind) for SCSI tape
   device 0, [...] These device files invoke the *new* Apollo tape library, and
   therefore can access the 8mm Exabyte drive in addition to SCSI cartridge
   tapes and SCSI 9-track tapes.

Except, for some strange reason, Apollo's mt will not work with the
Exabyte.  So with the Omniback software, you get a program named
new_mt to use as a replacement.  (Maybe there is a patch out for
Apollo's mt that fixes this problem?)

- Harald Hanche-Olsen <hanche@imf.unit.no>
  Division of Mathematical Sciences
  The Norwegian Institute of Technology
  N-7034 Trondheim, NORWAY