I seem to remember that V=R was used with MVS/XA running under VM/XA SF and you could bounce VM/XA SF and the guest would stay up.
Bob -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Greg Dyck Sent: Friday, June 09, 2017 12:43 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: curious: Anybody still use ADDRSPC=REAL ? On 6/8/2017 10:44 AM, John McKown wrote: > This still seems to be supported in z/OS 2.2. Does anyone need to run > a program V=R in today's world? I'm just curious because this support > seems to be a "waste" of protect keys 10 through 15. Of course, if > those keys were "freed up", what could they be used for? It has been 30 years since I saw a program that actually required V=R to run successfully, and that was only for specific OLTEP test programs that dynamically modified CCW chains. believe that device being tested no longer exists. I believe most installations set IEASYSxx REAL= to 0 a long time ago, and never looked back. If they did not, then they should. As to keys 10 through 15, I don't see a great need for using them. Regards, Greg ---------------------------------------------------------------------- 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
