TPX Session Management for z/OS

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How to run a smoother TPX system and avoid unpredictable issues.

  • 1.  How to run a smoother TPX system and avoid unpredictable issues.

    Broadcom Employee
    Posted Oct 04, 2021 09:44 AM

    If you make frequent changes to users, profiles, applications, and other items on your TPX system, you should reorganize your VSAM files periodically to avoid undesirable effects.

    As changes, additions, and deletions are made to the system, the affected VSAM files accumulate CI and CA splits over time and need a periodic REORG. The frequency of the REORG depends on the volume of file changes, and is different for every site.

    Business requirements often limit the amount of time that TPX can be unavailable. The only time that TPX must be taken down is for the IDCAMS RENAME and RESET INTEGRITY, both of which execute quickly. These tasks should be done during a planned outage of TPX.

    See KD Article ID: 32075 for steps that can be taken while TPX is running to minimize downtime.