Statistics=Export
    Nostatistics

    Specifies that statistic information is to be saved when the
    database is closed. The default is Nostatistics, which indicates
    that statistic information is not preserved when the database is
    closed.

    Clusterwide statistic information is not stored in the statistic
    file, which allows you to decide on which nodes the statistic
    information should be initially loaded when the database is
    opened.

    The statistic information is stored in a node-specific database
    file located in the same directory as the database root file.
    The file has the same name as the root-file-spec, with a default
    file extension of .rds. Because the statistic files contain node-
    specific information, they cannot be renamed or copied. They can
    be deleted if they are no longer needed.

    The Statistics=Export qualifier cannot be specified in
    conjunction with the Cluster qualifier. To preserve the
    statistics information for a database open on a cluster, you
    must specifically close the individual nodes.

    The RMU Backup command does not save the statistics files. They
    are considered temporary files and not part of the database.