Syntax option:

    NUMBER IS number-glo-buffers

    Specifies the default number of global buffers to be used on
    one node when global buffers are enabled. This number appears as
    "global buffer count" in RMU Dump command output. Base this value
    on the database users' needs and the number of attachments. The
    default is the maximum number of attachments multiplied by 5.

                                   NOTE

       Do not confuse the NUMBER IS parameter with the NUMBER OF
       BUFFERS IS parameter. The NUMBER OF BUFFERS IS parameter
       determines the default number of buffers Oracle Rdb
       allocates to each user process that attaches to the
       database. The NUMBER OF BUFFERS IS parameter applies to, and
       has the same meaning for, both local and global buffering.
       The NUMBER IS parameter has meaning only within the context
       of global buffering.

    You can override the default number of user-allocated buffers by
    defining a value for the logical name RDM$BIND_BUFFERS. For more
    information, see the Oracle Rdb7 Guide to Database Performance
    and Tuning.

    Although you can change the NUMBER IS parameter on line, the
    change does not take effect until the next time the database is
    opened.