It has more to do with the shop than with the OS. I've quickly cloned and shuttled between LPARs when the system was laid out to support that. For z/OS tat mostly means IPLPARM and PARMLIB.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Phil Smith III <[email protected]> Sent: Tuesday, September 3, 2024 11:19 AM To: [email protected] Subject: 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
