On Sun, 17 Aug 2025 09:10:45 -0500, Paul Gilmartin <[email protected]> wrote:
>Do administrators use something similar to diff3 to control PARMLIB changes? FYI, Administrators are not a thing for z/OS. There's a huge distinction with z/OS Sysprogs where z/OS programmers work in a controlled environment. Unix administrators are far less skilled than z/OS sysprogs. As for PARMLIB, it's a completely different philosophy. Unlike Unix, you don't clone a z/OS system. Unlike /etc, PARMLIB is not directly associated to the OS release. It's a multifaceted implementation but let me point out 1 facet. z/OS doesn't limit you to a single configuration file. For instance, you can specify ALLOC=(10,20,13) that will merge ALLOC10, ALLOC20 and ALLOC13 where these names have meaning to you (e.g. ALLOC13 is the IBM supplied configuration that you never modify, ALLOC20 are the parms needed for the sysplex and ALLOC10 are the parms needed for the system). You may even have some parmlibs shared between all systems in the SYSPLEX. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
