I stand corrected! Thanks Timothy. Ant.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Timothy Sipples Sent: Friday, 25 September 2015 2:11 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: OS/390 hard wait Anthony Thompson wrote: >The earliest version of MVS (sic) that is advertised to support >ARCHLVL=2 is z/OS 1.6 A correction: z/OS 1.6 was the first release of z/OS to *require* ARCHLVL 2 (i.e. z/Architecture and 64-bit). OS/390 2.10 through z/OS 1.5 (inclusive) were bimodal and advertised as such. My recollection is that OS/390 2.10 did not originally ship in bimodal form at its General Availability -- or at the very least OS/390 2.10 wasn't *initially* advertised as bimodal. OS/390 2.10 was announced on May 16, 2000, several months before IBM announced the z900 on October 3, 2000. Perhaps that helps answer Tony Thigpen's question. Maybe his customer just skipped applying at least some ARCHLVL 2-related updates to their OS/390 2.10 installation. However, even with all such updates in place it still might not matter on a z10. The newest IBM model that supported OS/390 2.10 was the IBM z890 according to this table: http://www.ibm.com/systems/z/os/zos/support/zos_server_support.html z/VM 6.3 never supported the z890 -- z/VM Version 6 requires a z10 or higher -- and thus also never supported OS/390 2.10 as a guest. So if OS/390 2.10 runs in z/VM 6.3 on a z10 it's accidentally fortuitous, or fortuitously accidental, even with the final and complete set of OS/390 2.10 updates in the mix. -------------------------------------------------------------------------------------------------------- Timothy Sipples IT Architect Executive, Industry Solutions, IBM z Systems, AP/GCG/MEA E-Mail: sipp...@sg.ibm.com ---------------------------------------------------------------------- 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
