Controls whether CMS prompts you for confirmation prior to
    deleting any invalid reference copies during a VERIFY/REPAIR
    operation. In some cases, however, if CMS finds invalid reference
    copies (for example, if there is one valid reference copy and the
    remaining reference copies are invalid), it automatically deletes
    the invalid copies without prompting for confirmation.

    If you type YES, ALL, TRUE, or 1, CMS executes the transaction. If
    you type NO or QUIT or press RETURN, no action is performed. If
    you type any other character, CMS continues to prompt until you
    type an acceptable response.

    CMS does not prompt for confirmation in batch mode.