Thresholds=(val1[,val2[,val3]])

    Specifies a storage area's fullness percentage threshold. You
    can adjust SPAM thresholds to improve future space utilization in
    the storage area. Each threshold value represents a percentage of
    fullness on a data page. When a data page reaches the percentage
    of fullness defined by a given threshold value, the space
    management entry for the data page is updated to contain that
    threshold value.

    The Thresholds qualifier applies only to storage areas with a
    mixed page format.

    If you do not use the Thresholds qualifier with the RMU Restore
    command, Oracle Rdb uses the storage area's original thresholds.

    This is a positional qualifier.

    See the Oracle Rdb7 Guide to Database Performance and Tuning for
    more information on setting SPAM thresholds.