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IV47043: IMPROVE FC DRIVER REQUEST STRUCTURE ALLOCATION LOGIC APPLIES TO AIX 6100-08

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Customers should see no functional change.  Perhaps a
    performance improvement under heavy I/O load.
    

Local fix

Problem summary

  • Customers should see no functional change.  Perhaps a
    performance improvement under heavy I/O load.
    

Problem conclusion

  • Update the command structure allocation logic with to be
    functionally equivalent but faster.  This change will apply
    to Fibre Channel protocol devices managed by the "efscsidd"
    device driver.  The device driver can be checked using (for
    example):
    
    # odmget -q "name = fscsi0" CuDv
    CuDv:
            name = "fscsi0"
            status = 1
            chgstatus = 2
            ddins = "efscsidd"      <== This change applies
            location = "08-00-01"
            parent = "fcs0"
            connwhere = "1"
            PdDvLn = "driver/efc/efscsi"
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV47043

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2013-08-13

  • Closed date

    2013-08-13

  • Last modified date

    2014-02-17

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

    IV46410

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

    U864778

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U864778

       UP14/02/17 I 1000

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Document Information

Modified date:
17 February 2014