cannot read a needed record from relation !AD

    Explanation: The database could not be read. The cause of this
    problem may be an undefined logical, corrupt database, DFG
    software error, or Rdb software error. This problem can also
    be caused if the RMU Monitor process (RDMS_MONITOR) is not
    executing. Associated messages provide more detail.

    User Action: Verify that all DFG logicals are defined and ensure
    that RDMS_MONITOR is running. If RDMS_MONITOR is not running, it
    can be started by invoking @SYS$STARTUP:RMONSTART.COM. Refer
    to associated messages to determine if additional action is
    necessary.