Checksum

    Reads every page in the database storage areas to verify that the
    checksum on each page is correct. If the checksum on the page is
    incorrect, it is replaced with the correct checksum.

    Use the Areas qualifier to specify which storage areas RMU
    Repair should check. If you do not specify the Areas qualifier,
    all pages in all storage areas are checked and updated (if
    incorrect).

    This qualifier can be used whether or not users are attached to
    the database.

    This qualifier is not valid for use with any other qualifiers
    except the Areas qualifier.