> -----Ursprungligt meddelande----- > Från: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] För > Vernooij, CP - SPLXM > Skickat: den 13 februari 2012 14:22 > Till: IBM-MAIN@bama.ua.edu > Ämne: Re: Archaic allocation in JCL (Was: Physical record size query) > > "Thomas Berg" <thomas.b...@swedbank.se> wrote in message > news:<a90e503c23f97441b05ee302853b0e6263ff850...@fspas01ev010.fspa.myntet. > se>... > > > -----Ursprungligt meddelande----- > > > Från: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] För > > > Lizette Koehler > > > Skickat: den 13 februari 2012 12:43 > > > Till: IBM-MAIN@bama.ua.edu > > > Ämne: Re: Archaic allocation in JCL (Was: Physical record size query) > > > > > > > > > > > I can't understand why we STILL need to specify SPACE= (etc) for an > > > allocation of a > > > > dataset. > > > > You normally don't do that in other OS (platforms), You always (both > > > principally and in > > > > practice) want to allocate as much as is needed during execution > > > > > > > > If for backward compatibility it can't be done automatically, why > not > > > introduce a new > > > > keyword like e g "SPACE=ANY" ? > > > > > > > > > > > > > > Thomas, > > > > > > IIRC - if you force a DATACLAS on a dataset in SMS, you can specify > the > > > Space requirements there. Then the JCL does not require Space. Have > you > > > looked at that? However, then that makes your storage admin > responsible > > > for > > > ensuring the space is enough. And if needed alter the dataclass if > there > > > are space issues. And it would require all such datasets be SMS > managed. > > > > > > > > > Lizette > > > > Hi Lizette, > > > > In practice it's not a viable alternative. Besides the need (if doing it > that way) to communicate frequently with the "space gang", it's to many > variants of datasetnames and to many different needs for space depending > on time, date and subgrouping within applications. > > > > > > > > Regards, > > Thomas Berg > > Now I don't understand: if you have so many different space needs, how do > you assume 'SPACE=ANY' to solve this?
With SPACE=ANY, the needed space is allocated and extended during the execution. So You don't do any "preallocation" of a specified amount of space. Regards, Thomas Berg _________________________________________ Thomas Berg Specialist A M SWEDBANK ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
