Monitoring: Outline of Tasks and Issues

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Scope: what to monitor and why

  1. Online and near-online
  2. Provide feedback to insure data quantity and quality
  3. All relevant areas:
    1. GlueX Detector
    2. Detector electronics
    3. Hall D systems
    4. relevant Accelerator systems
    5. relevant IT systems
    6. relevant Facilities Management systems

Beyond scope: what should be done by other means

  1. Safety
    1. Personnel
    2. Equipment
  2. Beam time accounting
  3. Personnel training/certification/qualification
  4. Shift-taking accounting
  5. Shift-takers' refreshment supply

Types of data: how data is produced

  1. Event based: in the data stream
    1. Triggered detector events
    2. Special events
  2. Slow controls: on-demand (usually), small data volume
    1. EPICS or EPICS-like devices
    2. stand-alone systems
  3. Video
  4. Web-based variables
  5. Monitoring applications

Audience: who wants to know

  1. Counting room personnel
  2. Accelerator personnel
  3. Detector and systems experts
  4. Collaborators
    1. On-site
    2. Off-site

Presentation: how to access the data

  1. Histograms
  2. Strip charts
  3. Web pages
  4. Desktop applications
  5. Audible alarms

Programs: automated data consumers

  1. Alarm handlers
  2. Archiver (database fillers)
  3. Logbook
  4. Event reconstruction engine

Time-scales

  1. Real time
  2. Minute-by-minute
  3. Hourly
  4. Every shift
  5. Every day
  6. Weekly
  7. Monthly
  8. Run period
  9. Annually

References

  1. What's our need? from Eric Scott
  2. timelines for the review from Elke