Andrew Rowley wrote: >It would benefit customers, software vendors and IBM if IBM could get >these small systems onto more reasonably sized hardware. We get a >certain pleasure from extracting everything possible from a small >system, but in reality it's not productive work.
That’s been happening, actually. Take a look at the minimum configurable CP (general purpose processor) “PCIs” per IBM’s LSPR data: z10BC: 25 z114: 26 zBC12: 50 z13s: 80 z14 ZR1: 88 z15 T02: 98* As I recall the Multiprise 2000 went down as low as ~3.5 PCIs. So over roughly 25 years it’s been about 3.5 to 98 PCIs as the minimum available CP configuration, or about a 28X increase. Insert the usual caveats that “PCI” comparisons are perilous, particularly over this broad range of machines. IBM doesn’t mandate configuring a zIIP in part because z/VSE and VSEn cannot use a zIIP. But IBM generally recommends configuring at least one zIIP if you run z/OS. zIIPs are (or were) available for all of these models and also for the z9BC. * As Marna mentioned the IBM z15 models have System Recovery Boost. The IBM z15 T02 capacity model A01 would actually run equivalently to a Z01 capacity model during System Recovery Boost (60 minutes), or with even greater capacity if equipped with a zIIP. An IBM z15 T02 capacity model Z01 has a PCI rating of 1,761. — — — — — 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
