Dear Yes. You are right. Thanks a lot!
I started DFHSM up in our shop today. I want to Release unused and overallocated space by HSM I defined a MC(MCTSO) in which the Partial Release is YI . I assigned prefix ibmuser as MCTSO in ACS routing. I allocated a PDS (IBMUSER.PDS) which space is cyl(200,200,50) IBMUSER.PDS is in the SG :SGTSO Below is the definition of the SGTSO : Auto Migrate . . N (Y, N, I or P) Migrate Sys/Sys Group Name . . Auto Backup . . N (Y or N) Backup Sys/Sys Group Name . . Auto Dump . . . N (Y or N) Dump Sys/Sys Group Name . . . During PSM,IBMUSER.PDS wasn't released. I changed Auto Migrate from N to Y. After I issue HSEND SETSYS PRIMARYSPMGMTSTART (1800 1830) command at 18:00 o'clock,IBMUSER.PDS was released. Then,I I allocated a new PDS (IBMUSER.PDS1) which space is cyl(500,200,50) After I issue HSEND SETSYS PRIMARYSPMGMTSTART (1820 1845) command at 18:20 o'clock,IBMUSER.PS1 wasn't released My questios: 1.If I want to use Partial Release (Y) to release unused and overallocated space, Must Auto Migrate be Y in SG? 2.Why wasn't IBMUSER.PS1 released? How many times can PSM be run in one day? Thanks a lot! Best Regards, Jason Cai 发件人： Ron Hawkins 发送时间： 2011-05-09 23:11:00 收件人： IBM-MAIN 抄送： 主题： Re: How to release PDS by Partial Release = YI 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
