Mike Schwab asked: >Doesn't IBM also allow software capping to a lower capacity than the >slowest uniprocessor through the operating system?
Yes, but usually you wouldn’t do that for IBM software licensing reasons. That’s because the A01 capacity model uniquely qualifies for IBM zSystems Entry License Charges (“zELC”) from IBM. https://www.ibm.com/it-infrastructure/z/pricing-licensing Andrew Rowley wrote: >I did say "a small" system in the 1990s, not the smallest available. But >your 28X illustrates the point. Over the same period, other platforms >have increased what, 1000X? More? That’s even more difficult to characterize, but (eyeballing it) 1000X must be too high. To back up a couple steps, if you have either of these machines: any IBM zSystems machine with at least one zIIP any IBM z15 machine or higher then you should be fine, right? Having a zIIP gives you plenty of horsepower for z/OSMF, and having an IBM z15 gives you System Recovery Boost which gives you…plenty of horsepower for z/OSMF at least during the first 60 minutes. (It’s the z/OSMF startup that can take a long time on a low capacity configuration. One or more zIIPs is still a REALLY good idea, including for SRB as it happens. But for z/OSMF specifically, for getting z/OS installed, SRB should fit the bill.) OK, so what’s left? It’s specifically small capacity IBM z13s and IBM z14 ZR1 machines without zIIPs. z/OS 2.5 doesn’t run on any machine prior to IBM z13s, so this pending change doesn’t affect any prior models. But (good news!) you can still order and install z/OS 2.5 without z/OSMF for these particular machines. That’s the whole purpose of this thread, to alert you to the last CustomPac ordering date. And you could still start and run z/OSMF on a small capacity zIIP-less machine without SRB, but it can take a long time (wall clock time). Please talk with your “friendly IBM representative” if you’re going to have any difficulties here. But if you fit this profile: * run z/OS * small capacity IBM z13s or IBM z14 ZR1 * no zIIPs then please order z/OS 2.5 with CustomPac before the deadline, just in case you need it. There shouldn’t be any additional charge to place an order if you’re already a z/OS licensee. If that’s STILL not enough, please “talk with your friendly IBM representative.” These people are generally reasonable. — — — — — Timothy Sipples Senior Architect Digital Assets, Industry Solutions, and Cyber Security IBM zSystems and LinuxONE sipp...@sg.ibm.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
