It's a bit more complicated. There are two region restrictions, and you can only control one in JCL. Why IBM didn't repurpose the syntax of REGION with Hierarchy support to use the H1 (second) sub-parameter for size above the line, I'll never know. As it is, you can specify size above or size below, but not both.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Crawford, Robert C. <000001feadb2c2d2-dmarc-requ...@listserv.ua.edu> Sent: Wednesday, January 9, 2019 8:28 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Generic query on Region allocation failure We went through a similar round of problems with private areas below the line. You have to remember that the REGION parameter or whatever is SMFLIMxx is a limit, not an allocation. In other words, specifying REGION=7M doesn't mean the program will use 7 megs, it means it can't use more than 7 megs. Therefore, to my mind, there's no harm in setting limits as high as possible while reserving enough storage for the system and let everyone have at it. Robert Crawford Mainframe Management United Services Automobile Association (210) 913-3822 Manchmal ist das Denken lästig. - Albert Einstein Please send requests to Mainframe Management through our front door at go/mfm -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Seymour J Metz Sent: Tuesday, January 08, 2019 2:44 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: EXTERNAL: Re: Generic query on Region allocation failure Usually such ABEND codes have a reason in R15 and a message in the job log. Please include those when you ask for help. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Wayne Bickerdike <wayn...@gmail.com> Sent: Tuesday, January 8, 2019 2:29 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Generic query on Region allocation failure We keep seeing S106 abends trying to run DFHEISUP utility. It's been discussed a few times on various fora but no definitive solution yet. At CICS 5.2 it ran fine.5.3 it's hit and miss and 5.4 just plain doesn't work. All permutations of region size, MEMLIMIT=NOLIMIT, no IEFUSI have worked. Tried on 4 different systems. No joy. PMR time.. On Wed, Jan 9, 2019 at 6:19 AM Carmen Vitullo <cvitu...@hughes.net> wrote: > A good point, I myself have overlooked STC's region size because it's > never been a problem, I see some tasks never updated for 10+ years and > still have very small regions sizes. > > > > > Carmen Vitullo > > ----- Original Message ----- > > From: "Jesse 1 Robinson" <jesse1.robin...@sce.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Tuesday, January 8, 2019 1:13:14 PM > Subject: Re: Generic query on Region allocation failure > > This post is not intended to be enlightening; it's merely corroborative. > We recently went from z12EC to z14. We had already upgraded to z/OS > 2.3 with hardware support service. In the week or so afterwards, we > experienced a handful of 'storage shortage abends' in tasks that had > been running unchanged for years. AFAIK no technical explanations ever > came forth. In the few PMRs we opened, the advice was to increase region > size. We did. > Problems went away. Move on. > > I do have one piece of advice. Never specify a smallish region size. > If it's worth your time and effort to type in any region size at all, > go for some number >16M. It generally costs nothing and may save some > debugging grief down the road. I've seen cases where 0M may be > required for a particular product. Again, the cost of doing so is minimal. > Why quibble? > Someone needs to refresh the communal coffee pot. > > . > . > J.O.Skip Robinson > Southern California Edison Company > Electric Dragon Team Paddler > SHARE MVS Program Co-Manager > 323-715-0595 Mobile > 626-543-6132 Office ⇐=== NEW > robin...@sce.com > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Tom Marchant > Sent: Tuesday, January 08, 2019 7:49 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: (External):Re: Generic query on Region allocation failure > > On Tue, 8 Jan 2019 10:16:00 +0400, Jake Anderson wrote: > > >IEF085I REGION NOT AVAILABLE ERROR CODE = 20 IEF187I NNNNNJJJ FAILED > >- SYSTEM ERROR IN INITIATOR IEF472I NNNNNJJJ > > That means that the region that was specified is not available. > > Most likely, the region specified is less than 16M and that much > storage is not available below the line. It is certainly possible that > the available region size below the line is smaller on your old system > than is available on your new system. > > -- > Tom Marchant > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- Wayne V. Bickerdike ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
