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VM66845: NEW FUNCTION

A fix is available

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APAR status

  • Closed as new function.

Error description

  • New function:
    
    HCD added support for the following coupling limits on IBM
    processor type-model 9175:
    384 --> 512 CF CHPIDs can be defined for Metis
    (ICP,CS5,CL5,CS6,CL6)
    32  --> 64 adapters can be defined for Metis (CL5, CL6)
    4   --> 8 CF CHPIDs can be defined on HCA port (CS5, CL5, CL6)
    8   --> 16 CHPIDs per adapter can be defined for Metis (CS5,
    CL5, CL6)
    
    If attempting to define more than 4 CHPIDs to a port without
    applying this PTF, MSGCBDG613 is raised:
    CBDG613I Maximum number 4 of CL5 channel paths that can be
    defined to the same port aaaa.pp of processor PROC will be
    exceeded.
    
    If attempting to define more than 8 CHPIDs to an adapter without
    applying this PTF, MSGCBDG538I is raised:
    CBDG538I Maximum number 8 of CS5 channel paths that can be
    defined to the same adapter 04 of processor MET will be
    exceeded.
    

Local fix

Problem summary

  • KEYWORD: R9175/K
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    VM66845

  • Reported component name

    HCD/HCM

  • Reported component ID

    568411219

  • Reported release

    730

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function / Xsystem

  • Submitted date

    2025-05-02

  • Closed date

    2026-06-12

  • Last modified date

    2026-06-12

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    UM90611

Modules/Macros

  • CBDA880  CBDA880I CBDBLLLB CBDC099I CBDEM00A CBDEM00G CBDG783
    CBDG783I CBDMACTE CBDMCGGC CBDMDACY CBDMDCP1 CBDMDCT0 CBDMDPC1
    CBDMGHCP CBDMGSCA CBDMGSCH CBDMGSCL CBDMGSCU CBDMGSCV CBDMIFIR
    CBDMMPRE CBDMSDEF CBDMSENV CBDMSMSG CBDMSPAT CBDMUIIM CBDMVCP0
    CBDMVER0 CBDMVPF0 CBDMYCCB CBDMYVAL CBDP0149 CBDP0150 CBDUS050
    CBDUS314
    

Fix information

  • Fixed component name

    HCD/HCM

  • Fixed component ID

    568411219

Applicable component levels

  • R730 PSY UM90611

       UP26/06/12 I 1000  

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU011","label":"Systems - zSystems software"},"Product":{"code":"SG27M"},"Platform":[{"code":"PF054","label":"z Systems"}],"Version":"730","Line of Business":{"code":"LOB16","label":"Mainframe HW"}}]

Document Information

Modified date:
12 June 2026