Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!network!sdcsvax!ucsdhub!hp-sdd!hplabs!hp-pcd!hplsla!hpubvwa!apl-em!dunlap From: dunlap@apl-em.UUCP (John Dunlap) Newsgroups: comp.sys.hp Subject: Re: allocate/deallocate command wanted Message-ID: <630008@apl-em.UUCP> Date: 9 Aug 89 16:23:30 GMT References: <210024@speclab.bgp-usgs.gov> Organization: Applied Physics Lab, UW, Seattle WA Lines: 22 >What happens if somone else writes to the tape while I am writing? >What happens if my job has just finished, >and someone else starts writing--they write on my tape! One can unload the tape as soon as the writing is finished. I usually have a three line script that 1. writes the tape 2. reads the tape to make a table listing 3. unloads the tape I wonder what does happen when two programs write to the same tape simulateously. To my knowledge we have not had that happen in 5 years on three machines. We run the plotters on the spooler with the device file owned by the "lp" user. Masscomp does have an allocate for the tape drive. John dunlap@apl-em.apl.washington.edu hpfcse!hpubvwa!apl-em!dunlap