Fault Tolerance Task CERN

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					Fault Tolerance Task

             Preliminary Design &
              Development Plan



11/30/2001          WP 4 Workshop, Cern
  Actual Design
             Monitoring       Configuration              RMS
                                  DB




       MS                                                      FTA


                MSA            FTCE              Actuator
                                                Dispatcher
       MS                                                      FTA




       MS                                                      FTA




                            Remote Node




11/30/2001                WP 4 Workshop, Cern
  Status of Development
      Using own and PEM               AD is included into
      sensors without MSA             FTCE. -> Separation
      No connection to a              Only simple FTA
      monitoring system               exists, without
                                      feedback to AD
      FTCE is divided into            No remote access
      CE and DU                       possible
      DU is ruled based               No RMS API
      CE is vector based              No configuration API

11/30/2001          WP 4 Workshop, Cern
  Release 1.1
      Correlation unit 2D correlation
      Ruled based DU based on XML file
      Separated Actuator dispatcher
      10 – 15 simple actuators w/o feedback
      Monitoring Interface?
      CFG management Interface?


11/30/2001        WP 4 Workshop, Cern
  Decision Unit second Version
      4 month of Development
      Running for Release 2.0
      1. Step: providing same functionality
      as ruled based version
      Implementation of AI, expert systems
      or..?


11/30/2001        WP 4 Workshop, Cern

				
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