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
