Specifies the number of blocks SQL 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 less than 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.