Yes. And no issue these days on probably 95% + of all systems with above the line either. 2G ain't what it used to be and with the size of today's systems and paging subsystems, even if more than a few of these ill-behaved programs all did the variable length getmains at the same time you probably wouldn't notice. Even my smallest system has 1.5G of real storage and my smallest sandbox LPAR has 1G.
I still have my IEFUSI set with a default of 256M above, but anytime someone asks for more, they can have it. If they asks for 1G or more, they get everything above the line (which ends up being about 1700M-1800M on most of my systems). My last real update was in 2005 for MEMLIMIT (other than a slight change in 2007 for OA14391). The next time I do something with it, I'll probably just let all jobs/tasks get everything above the line and remove the 256M default. -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:mzel...@flash.net Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html Systems Programming expert at http://expertanswercenter.techtarget.com/ On Wed, 9 Feb 2011 09:46:49 -0500, Veilleux, Jon L <veilleu...@aetna.com> wrote: >The only problem with not limiting the region below is if you have a job that does a variable length getmain to take all available storage and then opens a lot of datasets you can get errors due to not enough below the line space for LSQA for the dataset control blocks. > >-----Original Message----- >From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Larry Macioce >Sent: Wednesday, February 09, 2011 9:27 AM >To: IBM-MAIN@bama.ua.edu >Subject: Re: Default REGION Size > >What about region=0m?? >From what I remember it will take what is needed, the down side is if you have something run away(loop) you might be in trouble. >Mace > >---------------------------------------------------------------------- >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 >This e-mail may contain confidential or privileged information. If >you think you have received this e-mail in error, please advise the >sender by reply e-mail and then delete this e-mail immediately. >Thank you. Aetna > >---------------------------------------------------------------------- >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
