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OA55110: D M=DEV(XXXX,CHP(YY)),LINKINFO DISPLAYS INVALID INFORMATION

A fix is available

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APAR status

  • Closed as program error.

Error description

  • After dynamically activating a new configuration that changes
    connections from FICON switched to FICON direct connection, the
    D M=DEV(xxxx,CHP(yy)),LINKINFO still displays a four column
    report that includes ENTRY / EXIT Ficon ports instead of
    updating to only display Channel and Control Unit columns.
    .
    The LchpSwitchedChp flag in the LCHP for the CHPID is not turned
    off when the LCHP is rebuilt for a CHPID connection that has
    been changed from Ficon switched to Ficon point to point.
    

Local fix

  • A re-IPL will correctly reset the control blocks used to build
    the LINKINFO display.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users at HBB7790 and above.                                  *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * Configuring from a Switched to                               *
    * Point to Point FICON connection                              *
    * may result in the D M=DEV(xxxx,                              *
    * CHP(yy)),LINKINFO command to display                         *
    * the Entry and Exit ports for a                               *
    * Switched connection when only the                            *
    * Channel port and Control Unit port                           *
    * should be display.                                           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When configuring from a Switched FICON connection to Point to
    Point FICON connection may result in the Link Diagnostics
    Manager task from incorrectly rebuilding and clearing the
    port type when dynamically changing the port connection
    configuration.
    

Problem conclusion

  • Corrected the logic when rebuilding the connection
    configuration type to allow the display command
    to show the correct information.
    

Temporary fix

Comments

APAR Information

  • APAR number

    OA55110

  • Reported component name

    IOS

  • Reported component ID

    5752SC1C3

  • Reported release

    7A0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-03-09

  • Closed date

    2018-04-19

  • Last modified date

    2018-06-04

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

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

    UA95967 UA95968 UA95969

Modules/Macros

  • IOSVLKMT
    

Fix information

  • Fixed component name

    IOS

  • Fixed component ID

    5752SC1C3

Applicable component levels

  • R7B0 PSY UA95967

       UP18/05/02 P F805

  • R7A0 PSY UA95968

       UP18/05/02 P F805

  • R790 PSY UA95969

       UP18/05/02 P F805

Fix is available

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Document Information

Modified date:
04 June 2018