Space management inside PDSes and PDSEs is not under your control. PDSes have to be compressed sometimes, and PDSEs handle it automatically.
RLSE applies to datasets, and is working as designed and documented. I expect it would work in JCL if specified correctly. sas On Tue, Oct 27, 2020 at 5:53 PM Charles Mills <[email protected]> wrote: > Don't most member allocation parameters apply to the entire dataset? I > would > expect RLSE to behave that way. Consider that classic error in which the > newbie codes DSN=WHATEVER(FOO),DISP=(OLD,DELETE) and is surprised that the > whole dataset, not just FOO, goes away. > > Not what you asked, but is SPACE=(,,RLSE) valid syntax? I think the first > two parameters are required, sort of. > > Charles > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Thomas David Rivers > Sent: Tuesday, October 27, 2020 3:47 AM > To: [email protected] > Subject: SVC 99 RLSE text unit on DISP=SHR allocation with a PDS/PDSE > member > name > > I have a DYNALLOC set up with a default of adding > the RLSE text unit (to release the space after a CLOSE.) > > This is to retrieve a system-provided DD name for an eventual OPEN > OUTPUT operation, > for opening a DSN(MEM) PDS/PDSE member. > > The PDS in question already exists (happens to be a PDSE.) That is, > this is not > a NEW allocation. > > So, basically it would be something like: > > //<sysname> DD DSN=MY.PDSE(MEM),SPACE=(RLSE),DISP=SHR > > (no other space parms are provided in the DYNALLOC text-units, it's invalid > JCL but seems to be OK for DYNALLOC.) > > It seems that if the RLSE text-unit is provided, _all_ of the remaining > space in the PDS/PDSE > is released, not just "space" for the member; that is, the entire > PDS/PDSE allocation > is truncated on the CLOSE. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
