Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.ARPA Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!jpl-vlsi.arpa!tencati From: tencati@JPL-VLSI.ARPA Newsgroups: fa.info-vax Subject: Magtape Volume sets on VMS V4.x Message-ID: <8510040252.AA26974@UCB-VAX.ARPA> Date: Thu, 3-Oct-85 19:09:08 EDT Article-I.D.: UCB-VAX.8510040252.AA26974 Posted: Thu Oct 3 19:09:08 1985 Date-Received: Sat, 5-Oct-85 03:07:30 EDT Sender: usenet@ucbvax.ARPA Reply-To: info-vax@ucb-vax.arpa Organization: The ARPA Internet Lines: 35 A colleague of mine on another computer system asked me to forward the following problem about magnetic tape ACPs under VMS V4.x. If anyone can help out, I would appreciate it. > In Version 3.x of the VMS operating system, if you wanted to write > (or read) a volume set of magnetic tapes, it was basically your respon- > sibility to initialize the volume set prior to it's use. For example, if > you wanted to write one large file out onto three tapes, those three tapes > must have been initialized as a volume set and mounted as a volume set. > If, after writing on the third tape, you realized it was going to take four > tapes, you were out of luck, VMS couldn't initialize the fourth tape with tape with > a pending write request. > > A new feature of VMS version 4.0 is that the magnetic tape ACP will > automatically ask the operator to mount a relative volume n+1 if it > hits the EOT mark and there is a pending write (or read) request. Thus, > you no longer have to create and mount a volume set, VMS will create it > for you as you go along. > > The problem I am encountering is that after the first tape is written, > an operator request goes to the console which says "Please mount relative > volume 2 (VOLNAM) on device x". At that point, no matter what tape is > mounted on the drive, it will not recognize it as relative volume 2. > I have tried a blank tape and the REPLY/BLANK_TAPE= reply, I have tried > a scratch tape and the REPLY/INITIALIZE= reply, and I have tried initializing > the volume myself to the label it is looking for and using the REPLY/TO= > reply, none of these approaches has worked. I will pass along any input I receive. Thanks in advance. Ron Tencati JPL-VLSI.ARPA