Phil, I too use the ADCD image. I can usually download the new volumes and have my system up and running in my configuration in an afternoon. I keep a set of instructions, which needs occasional adjustments for each new release.
But I am simply running ADCD systems at home. I can IPL as much as needed. (And I don't bother too much with the spool.) Lennie -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Phil Smith III Sent: 03 September 2024 17:35 To: [email protected] Subject: Re: [EXTERNAL] Upgrading z/OS vs. z/VM Ok, that's interesting. Maybe we're more constrained because it's an ADCD image? -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Pommier, Rex Sent: Tuesday, September 3, 2024 11:38 AM To: [email protected] Subject: Re: [EXTERNAL] Upgrading z/OS vs. z/VM Phil, I'm going to give you a qualified "nope" here. Granted I work at a small site - 2 production LPARs and a sandbox, no shared anything, no sysplex yadda yadda yadda. We currently have 3.1 sitting on a mod27 volume (with its unix filesystem datasets that shipped with it ready to go). Had to put new catalog entries into the master for the new USS datasets and new libraries on the RES pack - using indirect cataloging for it. IPLed 3.1 and ran for a few hours before we hit a snag that forced us to back out to 2.4. Backout was simply shutting down, pointing the hardware to the 2.4 SYSRES and IPLing. No messing with spool or anything else. Just need to make sure fallback maintenance is in place. Rex -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Phil Smith III Sent: Tuesday, September 3, 2024 10:20 AM To: [email protected] Subject: [EXTERNAL] Upgrading z/OS vs. z/VM I'm NOT trying to start a war here, just trying to grok whether I'm confused or not. I will make assertions below, any/all of which may be wrong, but that seems better than qualifying each with "I think..." etc. Upgrading z/VM versions has been pretty trivial for quite a while: point to a new CP module, reIPL. Upgrading z/OS is a lot harder. There's no way to just swap the OS itself, which means you need to clone the LPAR and then connect the user data volumes, with required catalog tinkering. And SPOOL needs to be backed up and restored (or contents lost). Is this really still true in 2024? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- 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
