IBM Support

IJ23222: NPIV I/O HANGS AND/OR TIMEOUTS ON VIOS 3.1.1

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APAR status

  • Closed as program error.

Error description

  • **************************************************************
    * USERS AFFECTED:
    * Systems running VIOS 3.1.1.x with
    * devices.vdevice.IBM.vfc-server.rte at 7.2.4.0.
      **************************************************************
    * ERROR DESCRIPTION:
    * This is only an issue using NPIV with VIOS 3.1.1.
    * Client LPARs can experience I/O hangs and timeouts under
    * heavy I/O load.
    * We have seen this issue primarily during database backups,
    * but can occur with any large sequential I/Os at high rates.
      **************************************************************
    * RECOMMENDATION:
    * Install APAR IJ23222.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/ij23222/
    * https://aix.software.ibm.com/aix/ifixes/ij23222/
    * Installation of the ifix requires a reboot.
      **************************************************************
    

Local fix

Problem summary

  • On VIOS 3.1.1, a vfchost driver may get into a state where it
    stops processing I/O requests from the client.
    

Problem conclusion

  • Correctly calculate resources needed for I/O request.
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    IJ23222

  • Reported component name

    VIRTUAL I/O SER

  • Reported component ID

    5765G3400

  • Reported release

    310

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Submitted date

    2020-03-05

  • Closed date

    2020-03-10

  • Last modified date

    2020-03-10

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

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

    IJ23377

Fix information

  • Fixed component name

    VIRTUAL I/O SER

  • Fixed component ID

    5765G3400

Applicable component levels

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAVQG","label":"PowerVM VIOS Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAVNM","label":"PowerVM VIOS Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAVQG","label":"PowerVM VIOS Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSXUJX","label":"PowerVM Standard (VIOS)"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSXUCU","label":"PowerVM Express (VIOS)"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAVQG","label":"PowerVM VIOS Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAVQG","label":"PowerVM VIOS Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11M","label":"APARs - AIX 5.2 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11P","label":"APARs - AIX 5.3 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11Q","label":"APARs - AIX 6.1 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"310","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
10 March 2020