It's very sad that the IBM response to selling a smaller machine to sites based on their needs is that they should get a bigger box or buy a zIIP. I don't think that's really an acceptable response from IBM. Sadly, there really isn't going to be any other option(s) provided. For my clients that have really small boxes, I will just have to bite the bullet when working on their boxes and bring up z/OSMF late at night and hope to be done before I have to shut it back down.
It really stinks that IBM has let the smaller clients down like this. They should feel really bad, but I doubt it will keep them up at night, even though I'm the one that will need to lose sleep over it. Brian On Tue, 17 May 2022 09:35:12 -0500, Marna WALLE <mwa...@us.ibm.com> wrote: >Hi Gadi, >I'm going to give you some information. I'm not sure any of it will >necessarily help you, but at least you might be able to know what some options >are. You might already know this, and I apologize if I'm repeating >information you already know. There will not be any silver bullet, or >necessarily happy news here for you - I'll warn you. > > >1. As you see, it will be increasingly difficult to run any relatively modern >z/OS workloads at a reduced cost without a zIIP. I would include anything >Java related in that category. So, z/OSMF is definitely included. We are >becoming more and more dependent upon it for management of and certain >functions on the system, and therefore more reliant upon usage of zIIPs. I >would hope that your enterprise is aware of this, having taken a business >decision not to currently have a zIIP, and what that means to z/OS. > >2. There are some minor tweaks you can do the help with the performance on >z/OSMF start up. They've been discussed here several times, but I'll point >you to a performance paper where an IBM Performance Tester has done an >evaluation. >https://www.ibm.com/support/pages/system/files/inline-files/zosmf_v2r4_resource_requirement.pdf > In addition, I know that Frank Kyne has done his own deep dive into this >topic. He will be presenting at the z/OSMF Guild on just this topic, if you >wish to join and see if he has any pointers you might not be aware of: >https://community.ibm.com/community/user/ibmz-and-linuxone/blogs/rolando-perez/2021/11/03/zosmf-guild > >3. As you upgrade your HW server level, you will hopefully get to the z15 >eventually making your z13 situation not a long lasting situation. This is >where System Recovery Boost will give you at no cost, the ability to have an >IPL boost on your subcapacity machine to run full speed with a Speed Boost. >This will allow you to initialize z/OS and z/OSMF faster for 60 minutes. Once >you have z/OSMF initialized, the consumption of the z/OSMF server does flatten >out considerably. > >4. Do note that until July 10, 2022, you can get that CustomPac for z/OS V2.5 >that you can still install without z/OSMF. If your upgrade plans do intend to >upgrade to z/OS V2.5, I would order and download it now, so that at least you >have a copy of it that doesn't need z/OSMF to install for the time being. > >5. I'm seeing that there are few options left at this point. I can think of >only two: you could install with a CBPDO yourself, which will be time >consuming and cumbersome, and which itself will drive a lot of General Purpose >cycles. Or perhaps you could hire an outsider to use their own systems to >install and provide you with a dump/restore format. I wouldn't know, but I >would hazard that the cost of either of these might be more than the price of >a zIIP (but I know nothing of the costs). > >I do wish that you are able to find a solution that will work for you. >-Marna WALLE >z/OS Installation and Upgrade >IBM Poughkeepsie > >---------------------------------------------------------------------- >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
