Jason, I suspect that when you add a member to a PDS using ISPF that you are not satisfying all of the conditions described in "USING DATASETS 3.2.5.4 Releasing Space." I leave to other to define which one it may be, or disagree.
My guess is that when you use ISPF, the last operation before closing the PDS is to read the directory, which means the last operation before close is not write, stow, or put. I also found that Yes Immediate does not work if you update a PDS in batch with DISP=SHR. Use IEBGENER to copy in a member with DISP=SHR does not release space, but simply changing the JCL to DISP=OLD causes unused space to be released. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of > ibmnew > Sent: Sunday, May 08, 2011 9:17 PM > To: [email protected] > Subject: [IBM-MAIN] How to release PDS by Partial Release = YI > > Dear all > > In manual: > > YI:Yes Immediate. Release unused space at Space Management cycle time and > also when close is issued for a data set that was open for output. > > I define a MC(MCTSO) in which the Partial Release is YI . > > I assign prefix ibmuser as MCTSO in ACS routing. > > I allocate a PS (IBMUSER.PS) which space is cyl(200,200),I insert space into > th PS by p.3.4; > > Then ,I qiut the PS pressing F3.The PS is released immediately. > > Note: I allocate a PDS (IBMUSER.PDS) which space is cyl(200,200,50). > > I insert many members into th PDS by p.3.4 and update the member .Then ,I > qiut the PDS pressing > > F3.The PDS isn't released immediately. > > Could you tell me what' s wrong with me? How to release PDS by Partial > Release = YI > > Thanks a lot! > > Best Regads, > > Jason Cai > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
