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Status Not under consideration
Workspace z/OS
Categories HCD
Created by Guest
Created on Jul 20, 2022

RELATED IDEAS

New cross reference function

In large configuration with many LCU defined on few boxes there is the possibility to misconfigure HCD and give to one physical LCU different definitions that could leave to problems described by OA63553. At the present time the only way we have to protect ourselves from the error reported by OA63553 is to define all the LCU of a box as being attached to all the ficon ports of the hw box itself even thogh only 8 port can be used to reach the LCU. This is a cumbersome process that imply a lot of extra work for environment maintenance if we have to implement the number of FICON cables in use within the configuration. Having the ability to define wich ficon director ports port belong to the same physical box idipendently by the number of path/port actually defined for an LCU and providing a mechanism of XREF betwen the LCU defined in the whole IODF and the ficon ports (similar to the one which is in place for CHPID and LCU) could help in avoiding the misconfiguring of HCD
Idea priority Medium
  • Guest
    Reply
    |     Oct 19, 2022
    Closing this issue since we did not receive information on time.
  • Guest
    Reply
    |     Oct 7, 2022
    Hello Rina,

    we still did not receive your IODF for analysis.
    Please send it to our mailaddress IBMHCD@de.ibm.com

    Thanks in advance !

    Kind regards
    Your HCD Team
  • Guest
    Reply
    |     Aug 22, 2022
    Hello Rina,

    please send the exported IODF to the email address IBMHCD@de.ibm.com

    Thanks in advance !
  • Guest
    Reply
    |     Aug 18, 2022

    For the description of the scenario, it is described in my updates to TS008834715 update of April 26. I'm going to attach a copy of the case.

    I have problem in attaching the exported IODF. It is 17MB raw and 3MB zipped. May you tell me were I can upload it?

    The involved LCU are F280 and 8A80 and as you could see from the exported iodf, we have comment in place assigning every 2107 LCU to the hw s/n of the box to which belongs. but without having an implicit cross reference function in HCD we don't get any warning of the situtation: all check are based on human checks on comment lines updated by someone.

    Thanks, Rina

    SYA CSAA861E TS...
    SYA CSAA861E TS008834715_FAILURE DETECTED IN MVS COMMON STORAGE TRACKING - Cases - IBM Support.pdf
    Open full size
    SYA CSAA861E TS008834715_FAILURE DETECTED IN MVS COMMON STORAGE TRACKING - Cases - IBM Support.pdf
  • Guest
    Reply
    |     Aug 17, 2022
    Hello Rina,

    we discussed your scenario in the team and we are not sure if we fully understand it, from the HCD perspective.

    You wrote that you established a process by ???defining all the LCU of a box as being attached to all the ficon ports of the hw box itself even though only 8 port can be used to reach the LCU."

    As an alternative you might consider grouping the control units of the same storage server by a common serial number. Given that, you could filter the control units by serial number and search the filtered list for CUADD values used more than once.
    Could this help you to avoid accidentally defining the same control unit more than once?

    We know that you already sent some HCD related documents via case TS008834715.
    To analyse this, we would need more documentation (exported IODF or decks and a scenario description for the control units involved).

    Thanks in advance.

    Kind regards,
    Your HCD team

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