Syntax option:

    BUFFER SIZE IS buffer-blocks BLOCKS

    Specifies the number of blocks Oracle Rdb allocates per buffer.
    You need to specify an unsigned integer greater than zero. The
    default buffer size is 3 times the PAGE SIZE value (6 blocks for
    the default PAGE SIZE of 2).

    The buffer size is a global parameter and the number of blocks
    per page (or buffer) is constrained to 64 blocks per page. The
    page size can vary by storage area for multifile databases, and
    the page size should be determined by the sizes of the records
    that will be stored in each storage area.

    When choosing the number of blocks per buffer, choose a number so
    that a round number of pages fits in the buffer. In other words,
    the buffer size is wholly divisible by all page sizes for all
    storage areas in your multifile database. For example, if you
    have three storage areas with page sizes of 2, 3, and 4 blocks
    each respectively, choosing a buffer size of 12 blocks ensures
    optimal buffer utilization. In contrast, choosing a buffer size
    of 8 wastes 2 blocks per buffer for the storage area with a page
    size of 3 pages. Oracle Rdb reads as many pages as fit into the
    buffer; in this instance it reads two 3-block pages into the
    buffer, leaving 2 wasted blocks.

    The altered buffer size must allow for existing page sizes. You
    cannot specify a buffer size smaller than the largest existing
    page size.