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IJ21578: POSSIBLE UNDETECTED DATA CORRUPTION WITH CERTAIN FIBRE CHANNEL AAPPLIES TO AIX 7200-02

A fix is available

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • **************************************************************
    * USERS AFFECTED:
    * Systems running the AIX 7200-02 Technology Level
    * with devices.pci.df1000f7.com below the 7.2.2.18 level.
      **************************************************************
    * ERROR DESCRIPTION:
    * Possible undetected data corruption can occur when using the
    * following Fibre Channel adapters on AIX or VIOS:
    *
    * PCIe LP 8 Gb 2-Port Fibre Channel Adapter
    * (FC 5273; CCIN 577D)
    * 8 Gb PCI Express Dual-port Fibre Channel Adapter
    * (FC 5735; CCIN 577D)
    * PCIe2 FH 4-Port 8 Gb Fibre Channel Adapter
    * (FC 5729; CCIN 5729)
    *
    * With these adapters it is possible that I/Os may be reissued
    * with incorrect data being written to or read from the disk.
      **************************************************************
    * RECOMMENDATION:
    * Install APAR IJ21578.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/ij21578/
    * https://aix.software.ibm.com/aix/ifixes/ij21578/
    * The ifix can be installed using Live Update (LU).
    * If LU is not used, installation of the ifix requires a
    * reboot.
      **************************************************************
    

Local fix

Problem summary

  • Adapter may encounter EEH error and IO issues.
    

Problem conclusion

  • Re-ordered the heavy weight sync in Issue code path.
    

Temporary fix

  •   *********
      * HIPER *
      *********
    

Comments

APAR Information

  • APAR number

    IJ21578

  • Reported component name

    AIX V7.2

  • Reported component ID

    5765CD200

  • Reported release

    720

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Submitted date

    2019-12-12

  • Closed date

    2019-12-12

  • Last modified date

    2020-11-16

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

    IJ21527

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

Fix information

  • Fixed component name

    AIX V7.2

  • Fixed component ID

    5765CD200

Applicable component levels

  • R720 PSY U885691

       UP20/07/24 I 1000 Ž

PTF to Fileset Mapping

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Platform":[{"code":"PF053","label":"Power Systems"}],"Version":"720","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Document Information

Modified date:
18 November 2020