The z/OS image is spun up on an OCP container running on Linux. > On 9 Jun 2023, at 21:58, zMan <zedgarhoo...@gmail.com> wrote: > > Showing my ignorance: how does this relate to OCP? > >> On Fri, Jun 9, 2023 at 1:48 AM Timothy Sipples <sipp...@sg.ibm.com> wrote: >> >> Lennie Dymoke-Bradshaw asks: >>> Can someone please explain what IBM have done on the >>> LinuxOne machines to stop them running z/OS? >> >> Your predicate is incorrect. IBM LinuxONE servers CAN run z/OS. Please >> read on.... >> >> David Crayford wrote: >>> From what I gather, LinuxOne machines have the capability to >>> run z/OS within OCP containers, and there are cloud provisioning >>> tools available to choose systems software from the ADCD. I had >>> the opportunity to witness a demonstration of this at a zForum >>> conference, where IBMer Ed McCarthy showcased its impressive >>> functionality. I was quite impressed with what I saw. The provisioning >>> options ranged from x86 emulation to on-premises Linux on Z, >>> with various tiers in between. Tim Sipples will know the details. >> >> To my knowledge there are currently two generally available, fully IBM >> supported and authorized ways to run z/OS on LinuxONE servers: >> >> 1. Via the IBM Virtual Dev and Test for z/OS product. ZVDT supports >> running real z/OS for development, unit test, demonstration, and training >> purposes on IBM LinuxONE servers (and on IFLs in IBM zSystems servers). >> Please note that ZVDT does not currently support z/OS Parallel Sysplex >> configurations or the z/OS Container Extensions. But it does run real, >> bit-for-bit identical z/OS. And the performance is broadly excellent. >> ECKD/FICON-attached storage is supported but not required. >> >> https://www.ibm.com/products/virtual-dev-and-test-zos >> >> It's common to deploy ZVDT (and the z/OS instances it hosts) in its own, >> dedicated LPAR. But it doesn't necessarily have to be. My colleague Ed >> McCarthy might've demonstrated some other deployment options. >> >> 2. Via the IBM GDPS Virtual Appliance. You can optionally configure an IBM >> LinuxONE server with a single general purpose processor (CP) at a specific >> capacity setting. This single CP can only be used to run the IBM GDPS >> Virtual Appliance software. The GDPS VA software is shipped and serviced as >> a single, integral image, but it happens to be z/OS-based. (You're not >> licensed to use that "interior" z/OS for general purposes.) The IBM GDPS >> Virtual Appliance is broadly functionally equivalent to the IBM GDPS Metro >> Mirror (with HyperSwap) offering. ECKD/FICON-attached storage is required >> for the IBM GDPS Virtual Appliance itself. ECKD/FICON-attached storage is >> supported but not required for other workloads. >> >> Peter Bishop wrote: >>> And LinuxONEs only have IFLs. >> >> You have the option to configure LinuxONE servers with a single >> subcapacity CP. (See above.) You can also configure them with additional >> SAPs if you wish. >> >>> The rest of the box is the same, apart from the doors >> >> The two server families are related, but there are more differences >> besides the engine choices and doors. As a notable example the LinuxONE >> servers can be configured with NVMe Carrier features and even boot/IPL from >> them. NVMe Carrier features are not available on IBM zSystems servers. >> zHyperLink Express adapters are available in IBM zSystems servers but not >> in IBM LinuxONE servers. In past model generations (including z15/LinuxONE >> III which is still generally available) the storage-related adapters are >> often different, but there's some re-convergence in that area with the >> z16/LinuxONE 4 servers. IBM zSystems servers support model conversion >> upgrades (for example from z15 to z16) and carry forward of I/O features. >> LinuxONE servers do not support either model conversion upgrades or carry >> forward of any I/O features. >> >> You can look through the Feature Codes available for the IBM z16 >> (3931-A01) and IBM LinuxONE Emperor 4 (3931-LA1) and see many identical >> feature codes but also many differences. >> >> ————— >> 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 >> > > > -- > zMan -- "I've got a mainframe and I'm not afraid to use it" > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
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