Episode 36 "Watts Up" What’s New z17 ME2, single frame and rack mount! Webpage of the Moment: Java dependencies for z/OS elements and components We've moved z/OS dependency from Semeru 21 to 25! Mainframe - New System Recovery Boost Goodies Provided in OA66837 Message enhancement, more information in SMF 90.40 and 89. New Recovery Process Boost for dynamic I/O activation. There are now 8 of these types of recovery process boosts.Available on z/OS 3.1 and higher, for z16 and higher. Performance - IBM z17 Sustainability Metrics Power consumption data is provided on z/OS 3.1 and higher, in SMF 70.1 CPU Control Section.Available at both LPAR and Machine level. Machine consumption level has: infrastructure, unassigned (not deployed to any LPAR), and total. LPAR consumption level has: CPU (both GCP and zIIP), memory, and I/O.Martin's observations: LPAR consumption is largely driven by CPU, and there is a substantial amount of non-LPAR power consumption. Topics - Restarting Things Martin and Marna discuss why software gets restarted (z/OS IPLs and middleware restarts).Martin has noticed in engagements that it takes time for things to warm up. Most notably, Db2 buffer pools maturing.It is helpful to know when your warm-up period happens, such that you can be ready when your heaviest workload arrives. Restarts don't necessarily mean a workload or service outage, because of IBM Z technology advances (sysplex, workload balancing, ...) On the blog Marna's blogMartin's blog So It Goes Rss Apple Podcaster →
