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Status Future consideration
Workspace z/OS
Categories DFSMS General/Unknown
Created by Guest
Created on Jun 20, 2022

RELATED IDEAS

Changing "PRI/SEC/DIR BLKS" during a Deployment operation in z/OSMF Software Management

Using the CustomPac ISPF Dialogs, we previously had the ability to change the dataset allocations for PDS/ZFS datasets shipped via ServerPac to allow for local growth, removal of secondaries & increase of dir blocks. As zOS 2.5 is now shipped as a Portable Software Instance (PSI) and is installed via zOSMF Software Management, the Deployment Operation currently does not have the capability of changing these values. Not having this capability means we have to go back to manual actions (JCL) to realign the dsn sizings after completion of the deployment. Not doing this means later actions we take for local mods mean datasets B37, run of of dir blocks or end up with secondaries when a dataset ends up in linklist (against IBM recommendations).

Idea priority Medium
  • Guest
    Reply
    |     Jun 21, 2022

    Looking back on previous CPAC zOS installs we we tended to resize:-

    SYS1.SISPLOAD required for the SISPLPA>SISPLOAD usermod ISPMOVE1 to ensure enough space. https://www.ibm.com/docs/en/zos/2.3.0?topic=lpa-moving-load-modules

    SYS1.SHASMIG looks like a carry forward from some SMPE APPLY space issue with V2R1. Looks like PSWI is large enough.

    SYS1.SCSFMOD0 ditto previous V2R1 apply issue.

    SYS1.SERBLINK ditto previous V2R1 apply issue.

    SYS1.SEZATCP we have this in linklist so needs zero secondary

    SYS1.SORTLPA we have this in linklist so needs zero secondary


    We also need to add HFNT14J fmid to the 2.5 build. During the CPAC build of 2.4 we made considerably larger a number of datasets AND ZFS's to accomodate the additional FMID. Details to follow

  • Guest
    Reply
    |     Jun 21, 2022
    Thank you for your comments and suggestion. While I understand the request and will consider it for our future plans, I hope you can first provide some more details please. Which specific data sets did you have to explicitly reallocate with more space or directory blocks after the deployment? For which software products do these data sets belong? z/OS, a subsystem, another software product? I ask for this information because IBM has taken efforts to ensure the data sets created by a deployment of a z/OSMF ServerPac are allocated with at least 40% free space, but if there are particular data sets for which 40% free space is not enough, or if some data sets were missed and not allocated with 40% free space, perhaps we can increase their free space as a short term solution. Thank you for any specific details you can provide.

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