QQ - what's a PCI? - KB
------- Original Message ------- On Tuesday, June 27th, 2023 at 10:37 AM, Timothy Sipples <sipp...@sg.ibm.com> wrote: > Andrew Rowley wrote: > > > I've said it before but I'll say it again - to avoid embarrassment > > alongside 5 year old laptops or perhaps even a Raspberry Pi, IBM needs > > to figure out how to bring the smallest z/OS systems up to a modern > > configuration - I would suggest minimum 4 processors and 200 MSU. > > > IBM doesn't require anyone to order/configure less than 200 MSUs (PCIs) of > general purpose processor capacity. If you want to order a configuration like > that go for it! > > Bearing in mind that VSEn is important and also exists, and IBM really ought > to be building machines that also cater to VSEn customers, here's the current > minimum orderable machine configuration (latest model) for z/OS and VSEn: > > * IBM z16 A02 (or AGZ for rack mount) > * Capacity Model A01 > * Base CP capacity: 105 PCIs (13 MSUs) > * z/OS System Recovery Boosted capacity (standard/no additional charge): > 1,982 PCIs > * 64GB of usable memory (plus HSA) > > Add just 1 zIIP and you get ~1,900 PCIs of full-time zIIP capacity with 2 > processor threads (SMT2). You can add as many zIIPs as you wish up to the > physical capacity of the machine. > > Capacity Model A01 continues to be zELC eligible on the full capacity. Even > though it has 105 PCIs (plus System Recovery Boost, plus more and far better > on chip accelerators, plus optional zIIPs) it still qualifies for the same > software licensing tier that the ~26 PCIs IBM z890 Model 110 did 19 years ago. > > I don't see any problem here. If 105 PCIs/13 MSUs (plus a zIIP I suggest) is > all you need for your z/OS computing, well OK then! That model is available, > and (in most countries) you can get a nifty rack mounted form factor if you'd > like. If you need more, OK, that's available too. > > Here's the recent history of minimum orderable/configurable CP capacity (all > Capacity Models A01): > > IBM z16 A02/AGZ: 105 PCIs* > IBM z15 T02: 98 PCIs** > IBM z14 ZR1: 88 PCIs > IBM z13s: 80 PCIs > IBM zBC12: 50 PCIs > IBM z114: 26 PCIs > > * System Recovery Boost capacity: 1,982 PCIs > ** System Recovery Boost capacity: 1,761 PCIs > > The z114 was announced in 2011 and the z16 A02/AGZ in 2023. Over that period > IBM increased the minimum orderable CP capacity by ~12.4% per year > (compounded), plus SRB. > > ————— > Timothy Sipples > Senior Architect > Digital Assets, Industry Solutions, and Cybersecurity > IBM zSystems/LinuxONE, Asia-Pacific > 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
