Brian, You said:
"> I don't know about z/VM 5.3, but running z/OS 1.10 under z/VM on a > z13 and z14 works (and probably also on a z15), so it's likely that > it will work on a z12." Jim said: "Prior to z/OS 1.12, z/OS IPL uses Dynamic Address Translation while still in ESA/390 mode. z14 and later machines do not do ESA/390 DAT. So the oldest z/OS that could possibly IPL on a z14 or later machine would be z/OS 1.12. Running under z/VM would make no difference in this regard." There's nothing to differ about Brian. You said that running z/OS 1.10 under z/VM on z13 and z14 works, and Jim said thats physically impossible because the hardware doesnt support it, since it doesnt do ESA/390 DAT. Joe On Fri, Jul 31, 2020 at 11:24 PM Brian Westerman < brian_wester...@syzygyinc.com> wrote: > Jim, > > I beg to differ, he wants to run things on the z12 (I assume either an > ec12 or bc12). z/OS lifecycle extensions for 1.10 on the z12 (which was > offered at the z12 announcement and updated several times afterwards) > certainly isn't going to alter the z12 hardware in any way, and I doubt > that the ptfs installed to 1.10 for lifecycle are going to change DAT in > any significant way, but maybe they do. In any case, they were (and still > are I think) available, if you can do it with the extensions then you can > do it with z/VM as well. > > (this is from the 2013 IBM presentation slide #6) > • zEC12 and zBC12 capabilities differ depending on z/OS release > – Toleration support provided on z/OS V1.10 and z/OS V1.11 > • The Lifecycle Extension for z/OS V1.10 or z/OS V1.11 is required to > acquire toleration PTFs and for support > – Exploitation support provided on z/OS V1.12 and higher > • z/OS V1.12 > – Exploitation of selected functions > • z/OS V1.13 > – Exploitation of most functions > • z/OS V2.1 > – Full exploitation in base > > also (from the technical introduction) > > Operating systems Use of some features might require the latest releases. > The following operating systems are supported by the zEC12 and zBC12: > z/OS Version 2 Release 1 > z/OS Version 1 Release 13 with PTFs > z/OS Version 1 Release 12 with PTFs > z/OS Version 1 Release 11 with the IBM Lifecycle Extension with PTFs > z/OS Version 1 Release 10 with the IBM Lifecycle Extension with PTFs > z/VM Version 6 Release 3 with PTFs > z/VM Version 6 Release 2 with PTFs > z/VM Version 5 Release 4 with PTFs > z/VSE Version 4 Release 3 or later, with PTFs > > > 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
