Jim, So has ESA/390 been eliminated from z/Architecture?
Joe On Sun, Aug 2, 2020 at 11:16 PM Jim Mulder <d10j...@us.ibm.com> wrote: > There is no "might" about it. As shipped by IBM, nothing lower than > z/OS 1.12 will run on a z14 or z15. I don't know who you think "might" > know more about this particular topic than I do. I implemented the > code in z/OS 1.12 which allows it to IPL on a z14. I also know which > z/OS 1.12 modules can be copied to z/OS 1.6 through z/OS 1.11 to > allow them to IPL under VM on a z14, but that is for IBM internal use > only in case we ever need to test some fix on an old release in > our lab, since we moved our lab VM systems to z14 and z15. > > Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. > Poughkeepsie NY > > "IBM Mainframe Discussion List" <IBM-MAIN@LISTSERV.UA.EDU> wrote on > 08/02/2020 03:46:54 AM: > > > From: "Brian Westerman" <brian_wester...@syzygyinc.com> > > To: IBM-MAIN@LISTSERV.UA.EDU > > Date: 08/02/2020 11:51 PM > > Subject: Re: z/VM guest with old z/OS > > Sent by: "IBM Mainframe Discussion List" <IBM-MAIN@LISTSERV.UA.EDU> > > > > Oops, I may be wrong, I really should read what people have written > > completely. The z/OS 1.8 system does work on the z13s at the DR > > site (which is running z/VM, we have not tried it native), but you > > are correct that it "might" not run on a z14 or z15. It might, but > > I have no way to test it. I had assumed that since you can upgrade > > a z13 to a z14 in the same frame that they would be pretty similar, > > but maybe I'm wrong. > > > > Anyway the OP should have no problems running z/OS 1.10 on their new > > z12, assuming he gets the toleration PTFs, and assuming he is up to > > the most "current" z/OS 1.10 maintenance it likely would run without > > them as well, just some parts might not work completely. The > > extensions are not overly expensive. (even from my very cheap point of > view). > > > > Brian > > > > ---------------------------------------------------------------------- > 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
