Aij_Buffers=integer

    Specifies the
    number of buffers to be used by the recovery process. The default
    is 20 buffers. The valid range is 2 to 1,048,576 buffers. If the
    database root file is available, you can use the RMU Dump After_
    Journal command with the Option=Statistics qualifier to find a
    recommended value for this qualifier. See Dump After_journal for
    details.