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IJ03925: GROWING SSP DISKS BY A LARGE AMOUNT MAY RESULT IN I/O FAILURE

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Growing disks in VIOS SSP by a large amount may result in
    the pool holding up I/O for an excessive amount of time,
    causing client LPARs to timeout I/O.
    .
    We have seen this when the increase across all disks in
    the pool totals > 10 TB at once
    

Local fix

  • Increase the size of the pool slowly, smaller amounts, on
    only a few disks at a time.
    

Problem summary

  • Customer SSP pool was hung.
    

Problem conclusion

  • Improve space partition map access.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ03925

  • Reported component name

    VIRTUAL I/O SER

  • Reported component ID

    5765G3400

  • Reported release

    220

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-02-05

  • Closed date

    2018-12-12

  • Last modified date

    2018-12-27

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

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

    IJ12312 IJ12359

Fix information

  • Fixed component name

    VIRTUAL I/O SER

  • Fixed component ID

    5765G3400

Applicable component levels

[{"Business Unit":{"code":"BU029","label":"Software"},"Product":{"code":"SSAVPM","label":"PowerVM VIOS Standard Edition"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"220"}]

Document Information

Modified date:
06 August 2024