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IJ09894: POSSIBLE UNDETECTED DATA LOSS WITH POWER9 NVME APPLIES TO AIX 7200-01

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 7200-01 Technology Level
    * with devices.chrp.vdevice.rte below the 7.2.1.1 level or
    * devices.chrp.pci.rte below the 7.2.1.1 level.
      **************************************************************
    * ERROR DESCRIPTION:
    * Possible undetected data loss can occur with the optional
    * Power9 NVMe feature.  We have seen this issue occur under
    * heavy I/O stress. We have not seen this occur when the NVMe
    * devices are used for boot devices and non-intensive
    * workloads as recommended in the feature descriptions in the
    * Power9 NVMe RFA.  This only affects the VIOS/AIX LPAR(s)
    * using the NVMe devices.
      **************************************************************
    * RECOMMENDATION:
    * Install APAR IJ09894.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/ij09894/
    * https://aix.software.ibm.com/aix/ifixes/ij09894/
    * 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

  • Data miscompare/corruption.
    

Problem conclusion

  • Fix issue in pci_busdd
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    IJ09894

  • Reported component name

    AIX V7.2

  • Reported component ID

    5765CD200

  • Reported release

    720

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Submitted date

    2018-10-02

  • Closed date

    2018-10-02

  • Last modified date

    2019-11-14

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

    IJ09686

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

    U883802

Fix information

  • Fixed component name

    AIX V7.2

  • Fixed component ID

    5765CD200

Applicable component levels

  • R720 PSY U883802

       UP19/01/29 I 1000 Ž

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Document Information

Modified date:
14 November 2019