Seems to me that region size is more of a relic for when we were severely constrained on real memory. =0M works for me
Matt Hogstrom +1 (919) 656-0564 > On Jan 8, 2019, at 14:18, 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
