Very much it depends. Typically most IPLs are to roll service into production after testing on test and QA LPARs, but there are also just in case IPLS.
Some shops use a rolling IPL strategy within a sysplex, shifting workloads to minimize impact. Bottom line: it's as much a management issue as a technical issue, and there is no one size fits all. -- 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 Mark Jacobs <[email protected]> Sent: Tuesday, February 11, 2025 9:13 AM To: [email protected] Subject: Scheduled IPL Frequency External Message: Use Caution Is there currently a recommendation for a time period between IPLs of a system, both for cleanup and dynamic change validation, or is a "it depends" situation? Mark Jacobs Sent from [ProtonMail](https://secure-web.cisco.com/16cOD3DRXHx4mHzDsWf3XxEF5qAxG-1faB3Lke5bPvVBjnY2xqPB--bOToFecjAqJLdDQXJ2_DvPnG8dRjEfriDMITPBXhmeoWIDu-r6N5JxI7p19kq1qyysSf8VCSK-u45noTB4gg0aEO_r0TLjUg2r2aASemk1YQUm__kxzcmQYb9Qt4UamQgW3sEQWDiOLV3kM5hK4H4db1uNBkQ6s0kW77QhF9FM5hYUY5JHLCz8UWItkq6MICLv97ALYdbSf6vtrdK18tRv4HRD_ISWuFWVOszsiRI0hGmeNzcx04fnEvx7wXYvjCS2w7QmdtmUgVtwr2WawwFknMiQ9GdbYsoKkO2gGDJOpTuUy3ou48t_rTU9TlVaDBm7K4qw4k2lOrVnnjfT4SUraaF68biOkhnDralrQmq01PgWwcUXf5COCFbn_HVCjH77VdCAcPr1H/https%3A%2F%2Fprotonmail.com), Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ---------------------------------------------------------------------- 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
