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  • 1.  How many steps to upgrade z/OS from R2.3 to 2.4 on mainframe

    Posted Thu February 17, 2022 09:33 AM

    Hi YEE FONG:

     

    I think it is a real production z/OS system running on zSeries machine.

     

     

     

    Thank you very much.

     

    Best Regards,

    Jianfu Wang

    Sr. ITS Administrator

    Cognizant - TZUSA

    (270)792-8618

     

    This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient(s), please reply to the sender and destroy all copies of the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email, and/or any action taken in reliance on the contents of this e-mail is strictly prohibited and may be unlawful. Where permitted by applicable law, this e-mail and other e-mail communications sent to and from Cognizant e-mail addresses may be monitored.


  • 2.  RE: How many steps to upgrade z/OS from R2.3 to 2.4 on mainframe

    Posted Thu February 17, 2022 09:56 AM

    I have a fair amount of experience with this.

     

    1.       If you have IBM do the migration then V2R3 to V2R4 is one step. V2R2 to V2R4 would be two steps. V2R1 to V2R4 would be three steps. Make sense?

    2.       Yes, the hardware is a real z machine running VM with multiple z/OS guests, including yours (and mine).

    3.       If you don't have a lot of software installed or a lot of customization then you can do the parallel approach if you wish. You will have to copy everything over, customize the new system, and so forth.

     

    Charles

     




    Original Message


  • 3.  RE: How many steps to upgrade z/OS from R2.3 to 2.4 on mainframe

    Posted Thu February 17, 2022 10:16 AM

    That makes sense.

    Thank you very much, Charles.

     

    Best Regards,

    Jianfu Wang

    Sr. ITS Administrator

    Cognizant - TZUSA

    (270)792-8618

     

    This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient(s), please reply to the sender and destroy all copies of the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email, and/or any action taken in reliance on the contents of this e-mail is strictly prohibited and may be unlawful. Where permitted by applicable law, this e-mail and other e-mail communications sent to and from Cognizant e-mail addresses may be monitored.



    Original Message


  • 4.  RE: How many steps to upgrade z/OS from R2.3 to 2.4 on mainframe

    Posted Thu February 17, 2022 10:13 AM

    Trying for the third time ...

     

    I have a fair amount of experience with this.

     

    1.       If you have IBM do the migration then V2R3 to V2R4 is one step. V2R2 to V2R4 would be two steps. V2R1 to V2R4 would be three steps. Make sense?

    2.       Yes, the hardware is a real z machine running VM with multiple z/OS guests, including yours (and mine).

    3.       If you don't have a lot of software installed or a lot of customization then you can do the parallel approach if you wish. You will have to copy everything over, customize the new system, and so forth.

     

     

    Charles A. Mills | Chief Development Officer

    Phone: 707-291-0908
    Toll Free: 877-245-4322
    Email: Charles.Mills@CloudCompiling.com
    www.CloudCompiling.com

     

     




    Original Message


  • 5.  RE: How many steps to upgrade z/OS from R2.3 to 2.4 on mainframe

    Posted Thu February 17, 2022 10:30 AM

    Hi Charles:

    The below is what we have on the mainframe system. DB2 CICS MQ Wylbur......

    Do you think we go to option 1 – System Replacement to create new system

                                    or option 2 – System Migration to migrate on the old system?

     

     

     

    Thank you very much.

     

    Best Regards,

    Jianfu Wang

    Sr. ITS Administrator

    Cognizant - TZUSA

    (270)792-8618

     

    This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient(s), please reply to the sender and destroy all copies of the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email, and/or any action taken in reliance on the contents of this e-mail is strictly prohibited and may be unlawful. Where permitted by applicable law, this e-mail and other e-mail communications sent to and from Cognizant e-mail addresses may be monitored.



    Original Message


  • 6.  RE: How many steps to upgrade z/OS from R2.3 to 2.4 on mainframe

    Posted Thu February 17, 2022 10:44 AM
    Hi Yee Fong, 

    If you want some more detailed steps, then I'd look at the published z/OSMF workflows which give you great detail and also the steps necessary to perform the migration. I found it at IBM's github repo.  You'd need to put this into z/OSMF, but once there you should be able to 'print it' if you need it in paper format to look at the details.

    Hope this helps!

    ------------------------------
    Ian Chappell
    ------------------------------

    Original Message


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