I think if you ask on the VM List that Alan or Bill (Bitner) will know. My hazy memory — I remember the announcement, but I can’t remember for sure if it was before or after 1996.
Sent from my iPhone — small keyboarf, fat fungrs, stupd spell manglr. Expct mistaks > On May 10, 2021, at 9:35 AM, Seymour J Metz <[email protected]> wrote: > > Well,VM/XA MA, VM/XA SF, VM/XA/SP and VM/ESA all used subchannel numbers and > couldn't run in S/370 mode, but supported S/370 mode virtual machines. > Somewhere around VM/ESA IBM defined a subset of ESA for optional use by CMS > (or was it GCS?), and I believe that S/370 mode is now gone. What I'm looking > for is the timeline. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List [[email protected]] on behalf of > Steve Thompson [[email protected]] > Sent: Monday, May 10, 2021 9:14 AM > To: [email protected] > Subject: Re: When did CMS stop requiring S/370 mode? > > I’m going to hazard a guess that it went away when base 370 I/O was dropped. > > Sent from my iPhone — small keyboarf, fat fungrs, stupd spell manglr. Expct > mistaks > > >> On May 10, 2021, at 8:56 AM, Seymour J Metz <[email protected]> wrote: >> >> CMS originally ran on a real S/360 or on a S/60 virtual machine under >> CP-67.. The CMS for VM/370 through VM/SP ran on a virtual S/370. When did >> CMS stop requiring S/370 mode and when did it stop supporting S/370 mode (if >> it did)? >> >> >> >> -- >> Shmuel (Seymour J.) Metz >> http://mason.gmu.edu/~smetz3 >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
