> -----Ursprungligt meddelande----- > Från: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] För > Gibney, Dave > Skickat: den 13 februari 2012 22:31 > Till: IBM-MAIN@bama.ua.edu > Ämne: Re: Archaic allocation in JCL (Was: Physical record size query) > > > -----Original Message----- > > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On > > Behalf Of Thomas Berg > > Sent: Monday, February 13, 2012 5:11 AM > > To: IBM-MAIN@bama.ua.edu > > Subject: SV: Archaic allocation in JCL (Was: Physical record size query) > > > > > -----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. > > > > > But, this is precisely what SMS and DATACLAS are for. It does > accomplish, for the most part, SPACE=ANY. > Not fully using SMS is so 80s'
If so, do You really see everyone that creates and submits JCLs to create/change DATACLAS/STORCLAS instead of editing the SPACE= parms ? Or do You envision DATACLAS/STORCLAS's with very generous SPACE allocations (for every allocation) ? 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
