Somewhat oversimplified, a console receives anything with matching routing codes and can do anything permitted by its authority. The authority is controlled by the console definition and by security profiles in, e.g., RACF.
The issue that may affect you is the VM environment. What happens to the virtual HMC messages if the operator is diconnected? What happens to the 3270 output if nobody is dialed in? What happens if someone does a #CP DISC instead of a #CP RESET on the virtual 3270? See z/OS Version 2 Release 4 MVS Planning: Operations, SA23-1390-40. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Alan Altmark [alan_altm...@us.ibm.com] Sent: Monday, June 29, 2020 1:13 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: MVS master consoles Hi. I'm learning some things about MVS consoles. I have both the PD console (SYSCON - aka Operating System Messages task on the HMC) and a local 3270 console (named MVSMAST) active. Both have all routing codes assigned. This is in a virtual machine, so SYSCON works with the #CP VINPUT VMSG command and displays line mode output. Will both receive all messages and can either one respond to system action messages? What I really don't want is for use of the 3270 console to interfere with what's going on with SYSCON. Someone DIALs into the 3270 console and all of sudden the PD console stops getting messages or some such. As you can tell, there's a lot about MVS console management I don't grok. I've looked in the books, of course, but all that did was confuse me a bit more. It assumed I already understood various aspects of how consoles work. I know I can vary MVSMAST inactive at system startup and require them to activate it manually via #CP VINPUT VMSG, but that seems like mean thing to do if I can be assured that it's presence won't materially affect messages appearing on the PD console and it's ability to respond to any action messages it sees. (Yup, might be a race between human and machine, but I expect the machine to win that race.) Thanks., Alan Alan Altmark Senior Managing z/VM and Linux Consultant IBM Systems Lab Services Phone: 607-429-3323 | Mobile: 607-321-7556 E-mail: altma...@us.ibm.com Endicott, NY USA ---------------------------------------------------------------------- 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
