Re: Rolling Z/OS migration
Excellent suggestions. I would add that many organizations seem to have one or more "hardware" people who are supposed to look after the driver (firmware) updates, Coupling Facility configurations and levels (including memory requirements), and Server Time Protocol configurations, as examples. The Upgrade Workflow should includes steps that somebody else might need to take to make sure you're ready for z/OS 2.4 (and Parallel Sysplex) in terms of the underlying system characteristics. And one of the many nice things about the Upgrade Workflow is that you can assign steps to different people and cross-check everyone's work. - - - - - - - - - - Timothy Sipples I.T. Architect Executive Digital Asset & Other Industry Solutions IBM Z & LinuxONE - - - - - - - - - - E-Mail: 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
Re: Rolling Z/OS migration
Nothing real magical about it. First requirement is to make sure that all the required co-existence maintenance is applied and ACTIVE on all members of the sysplex. Then, assuming you have alternate sysres set, and everything is indirectly cataloged, you should be able to IPL one system at a time operating in a mixed mode. How fast you migrate is your call, but we migrate our production lpars over a period of about 6 weeks, and prior to that the upgrade has been in our sandbox and DEV environments for a few months help shake out unexpected events. _ Dave Jousma AVP | Manager, Systems Engineering Fifth Third Bank | 1830 East Paris Ave, SE | MD RSCB2H | Grand Rapids, MI 49546 616.653.8429 | fax: 616.653.2717 -Original Message- From: IBM Mainframe Discussion List On Behalf Of Mohamed Gomaa Sent: Wednesday, February 19, 2020 3:02 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Rolling Z/OS migration **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** I am looking for some white paper of redbook to help me in migration of Z/OS from v 2.2 into 2.4 in sysplex environment one LPAR at a time Thanks Mohamed Juma -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Rolling Z/OS migration
Use the z/OS workflow for migration. See the z/OS 2.4 documentation for ZOS/MF. It will point you to a GITHUB repository that the workflow can be downloaded from. IBM has in the past published "Migration" manuals. As of z/OS 2.4, the "Migration" manuals will no longer be published. Historically, this has been divided into: (A)Things to do before the 1st IPL of (new zos level) (B)Things to do at implementation (C)Things to do post-implementation. The basic design of a sysplex has the requirement that anything can run anywhere within the sysplex. Many installations do not use this philosophy and have various sub-divisions of the concept. That being said, there is nothing special about this process. Step1 - Install compatibility/fallback maintenance on your existing system (A) Step2 - Upgrade all ISV products to the necessary support level (A) Step3 - Perform the pre-implementation tasks. These are described in the Migration/Workflow as "Things to do before the 1st IPL of (new zos level) (A) Step4 - Upgrade 1 LPAR to the new level, validate and place into production (B) Wash, rinse, repeat. Step5 - Cleanup/Finalize. (C) Step6 - Exploit new function (C) HTH, -Original Message- From: IBM Mainframe Discussion List On Behalf Of Mohamed Gomaa Sent: Wednesday, February 19, 2020 2:02 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Rolling Z/OS migration [CAUTION: This Email is from outside the Organization. Do not click links or open attachments unless you trust the sender.] I am looking for some white paper of redbook to help me in migration of Z/OS from v 2.2 into 2.4 in sysplex environment one LPAR at a time Thanks Mohamed Juma -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ::DISCLAIMER:: The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Rolling Z/OS migration
I am looking for some white paper of redbook to help me in migration of Z/OS from v 2.2 into 2.4 in sysplex environment one LPAR at a time Thanks Mohamed Juma -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
