Re: z/OS 1.7 on a z196 under z/VM
On Sat, 28 Sep 2013 23:13:08 -0700, Ed Jaffe edja...@phoenixsoftware.com wrote: On 8/2/2013 3:14 PM, Bob Shannon wrote: you can indeed run your z/OS 1.6 under z/VM on the z/196 I'd like to know how you did that. 1.8 is the oldest version we could IPL under VM. Anything older enter a WAIT. We just installed a zBC12 today. (First U.S. West-Coast order/install of same!) One of the first things I tried was to bring up our old z/OS 1.4 system. It still IPLs: 8-) IEE254I 00.06.04 IPLINFO DISPLAYFRAME LAST SYSTEM IPLED AT 00.04.05 ON 09/29/2013 RELEASE z/OS 01.04.00LICENSE = z/OS USED LOADCS IN SYS1.IPLPARM ON 0A82 ARCHLVL = 2 MTLSHARE = N IEASYM LIST = 00 IEASYS LIST = CS (OP) IODF DEVICE 0A82 IPL DEVICE 0A80 VOLUME Z4RES1 Cool! And the secret is? Or is this documented in the archives? I haven't paid much attention to the threads like this because of how old these systems are at this point. Is it only having on CP defined? Also, this WAS under VM, correct? Regards, Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:m...@mzelden.com ITIL v3 Foundation Certified Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://search390.techtarget.com/ateExperts/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: z/OS 1.7 on a z196 under z/VM
Maybe you were trying to run in Sysplex mode. The z/VM (version 6.2) admin guide chapter 2 states specifically: Chapter 2. z/VM overview z/VM provides a highly flexible test and production environment on the IBM System z platform. The z/VM implementation of IBM virtualization technology provides the capability to run full-function operating systems such as Linux on IBM System z, z/OS, z/VSE, z/TPF, and z/VM as “guests” of z/VM. z/VM supports 64-bit IBM z/Architecture ® guests and 31-bit IBM Enterprise Systems Architecture/390 (ESA/390) guests. I know for a fact that we can and have run all the way back to OS/390 2.7 as a guest under z/VM 5.2 and 6.1, and I don't think there is anything special about 6.2 that would change that support. I have run z/VM 6.2 with z/OS 1.4 on a z/114, and I'm not aware of any major differences between the z/114 and z/196 in this respect. I can't honestly tell you that we did it on a z/196, but that's only because we have not had a customer take that path yet, not because I don't think it can be done. Possibly whoever set up your z/VM or the guest did something wrong. Now, that said, if you wanted to take advantage of any of a whole slew of z/114 or z/196 hardware capabilities under z/VM (not just sysplex), then running under z/VM isn't going to magically make it available for you on your older z/OS release. It's virtual, not magic :). You have to take what IBM tells you is supported to be just that, they don't support it, but that doesn't mean that it doesn't work. However, I still think that doing a quick move to z/OS 1.12 or 13 is the best way for the original poster to go, but that's just my personal preference, and solely because it's quicker, faster and cheaper. Brian Westerman Syzygy Incorporated -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: z/OS 1.7 on a z196 under z/VM
We do these kinds of conversions/migrations all the time (9 so far this year from 1.4, 1.6, 1.7, and 1.8) , and you can indeed run your z/OS 1.6 under z/VM on the z/196 without the toleration maintenance applied, mostly because there isn't any that you can apply to z/OS 1.6 for that box in the first place :). You cannot run z/OS 1.6 directly on the z/196, no matter how you define the LPAR. You CAN do it on some other boxes by limiting the defined number of CPU's to 1, but you can't do that by simply having them varied offline or anything. It's not something that I suggest you do without being on the phone to give you all of the steps. That said, I have run z/OS 1.6 on a z/114, but we DID add some special maintenance to make that happen and I would not EVER suggest that you run a production system that way, we did it solely as a exercise for IBM and not as part of a real conversion. The bigger question I guess is why you would not Install z/OS 1.12 or 1.13 (or soon 2.1) on the z/196 and quickly migrate to it from your existing box. z/VM is not hard to install, but the effort, especially if you are not already familiar with how to install and run it, can be an extra level of complexity that you may not want to deal with. I don't know anything about your site, but frequently z/VM is touted by IBM as a set-and-forget type of solution for hardware conversions that force OS upgrades, when it actually is anything but. Although if you expect that migration to take a while, moving to the new box under z/VM is a good choice. Normally it takes me about a week at most to install a new z/OS release at a customer site, and depending on the complexity of their site and how many (and the complexity of) system mods, as well as taking into account that some other products may need (or they may want them to be whether they are needed or not) to be upgraded as well, it takes between 2 more weeks to 12 weeks for me to complete the migration. There are a lot of things that can go wrong in a long jump migration, but most of them are easy to correct (especially once you have seen them a bunch of times), so you won't have too much of a problem with this type of direct migration from z/OS 1.6 to 1.12 or 1.13. I know that IBM wants people to perform that migration in multiple jumps, but for most (if not all) sites, that is completely unnecessary. If you want to contact me off list, I can give you some pointers on how to perform the conversion quickly (and more importantly, successfully), without bringing z/VM into the picture. I have installed z/OS now well over 200 times, and z/VM has been part of that process less than 10% of the time, and most of those times it really wasn't necessary, but the client had other reasons for wanting to get z/VM into the picture, and the client normally gets what they want. Brian Westerman -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: z/OS 1.7 on a z196 under z/VM
Hi We tried this last year (not under VM) without success. Gerry Sent from my iPhone On 1 Aug 2013, at 03:45, Con Vasilikakis cvasi...@csc.com.au wrote: Hi, We are looking to run z/OS 1.7 (without the z196 toleration maintenance on) on a z196 under z/VM 6.2 Does anyone know if this will work or is the z196 toleration maintenance still required ? -- 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
Re: z/OS 1.7 on a z196 under z/VM
Our LPAR had only one CPU and still failed. On 1 August 2013 14:53, Bob Shannon bshan...@rocketsoftware.com wrote: This issue has been discussed before. The oldest system that will IPL on a z196 is 1.8. Older systems will enter a Wait in WLM code. I believe that someone previously posted that older releases will IPL when defined as only having one CPU. We have not tried that. Bob Shannon Rocket Software -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- Gerry -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
