Jason, The volume must exceed the freespace threshold for space management to "manage" it. I forget if it is the upper or lower threshold.
Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of > ibmnew > Sent: Tuesday, May 10, 2011 3:53 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] How to release PDS by Partial Release = YI > > 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:IBM-MAIN@bama.ua.edu] On > Behalf Of > > ibmnew > > Sent: Sunday, May 08, 2011 9:17 PM > > To: IBM-MAIN@bama.ua.edu > > 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
