Hi Elardus, I have coded FREE=CLOSE (DALCLOSE) and also checked with DDLIST that neither the GDG nor the dataset itself are allocated after the CLOSE. DALRTDSN shows that I always get the same DSN.
Best regards, Beate > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Elardus Engelbrecht > Sent: Thursday, July 18, 2013 11:54 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: [IBM-MAIN] Relative generation - how to recognize new > datasets under TSO > > Beate Kawelke wrote: > > >I've been searching for hours but did not find a solution for the > following: During a TSO session, a user specifies a dataset name. He > may use a relative generation number (e.g., "MY.DSN(0)") and he may do > this several times, each resulting in a DYNALLOC (DALMEMBR set to the > generation number). When a new generation is created during the TSO > session, any subsequent DYNALLOC will NOT get this new dataset because, > as I read in one of IBM's manuals, at the first usage of a GDG the > operating system makes some sort of "connection" to make sure that > generation 0 is always pointing to the same dataset. While this makes a > lot of sense for batch jobs, it is not what I want in the above case. > > >Is there a way to "release" / "ignore" that connection (I have looked > through the DYNALLOC parameters, but to no avail) or do I have to go > through the catalog and use my own logic to determine the correct DSN? > ISPF Edit, much to my surprise, gets it right - if I specify generation > 0, the new dataset will be found. > > Where is your FREE statements when you're finished with a generation? > AFAIK, you should ensure you have no GDG allocated before attempting to > do a [new/another] DYNALLOC. > > Groete / Greetings > Elardus Engelbrecht > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
