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    For IBM Informix Dynamic Server onCONFIG settings for J/Foundation,

    refer to onconfig.std" in $INFORMIXDIR/etc.


    Location of Shared Memory:

    -------------------------

    When using IBM Informix Dynamic Server with J/Foundation, the onCONFIG

    variable SHMBASE should be set to the following:


        SHMBASE 0x700000010000000


    On AIX, the Java heap allocated by the Java Virtual Machine is created

    in the lowest available segment. If SHMBASE is set to 0x700000000000000,

    the Java heap will be created at an address after the server shared 

    memory segments. This can cause the server to fail with an assertion

    error if additional shared memory segments are dynamically allocated

    later.


    When SHMBASE is set to 0x700000010000000 or above, the 700000000000000

    segment is available for the JVM's Java heap, and the server can

    dynamically add shared memory segments beyond 0x700000010000000.


    If you must use 0x700000000000000 as SHMBASE, allocate enough shared

    memory segments before starting the J/Foundation server. Refer to the 

    "J/Foundation Developer's Guide for information on how to preallocate 

    virtual shared memory segments.


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