I didn't have a policy of regular RSU. But, I would usually bring maintenance up to current RSU plus HIPER, IBM , etc. midway between upgrades, usually every other Z/OS release. And, I would always bring my running system as close to current as was available before starting any upgrade.
Only once did I try to upgrade without fallback and co-existence fixes on my running system. This was long ago, my 1st time and was not a pleasant experience. > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On > Behalf Of Michael Watkins > Sent: Monday, July 17, 2023 3:44 PM > To: [email protected] > Subject: RSU Maintenance: Asking For a Friend > > [EXTERNAL EMAIL] > > There is a shop where the current philosophy is to not put on any > maintenance other than a PTF here and there if it is needed for a problem. But > no RSU maintenance. Instead of maintenance, the plan is to just reinstall z/OS > and all related products anytime they want to refresh the maintenance level, > including in between z/OS upgrades. > > When it was suggested that a reinstall requires so much more effort and risk > compared to RSU maintenance, the response was "it doesn't really and that a > lot of shops do it that way". Sure there are some shops that never put on > maintenance in-between upgrades, except the PTFs required for a problem. > Are there other places that regularly reinstall everything instead of putting > on > maintenance? Are there benefits to this approach? Would this approach > bother 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
