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Contribution from Americas on may 30 2007 [message #893 is a reply to message #885] Thu, 31 May 2007 05:31 Go to previous message
Messages: 13
Registered: May 2007
Location: Argonne National Laborato...

Here are the details from our (ART) workpackages. Clearly the
deployment at NML could really be a deployment at a test area
in any of the three regions.

1) Control System High Availability
High availability is achieved through the application of a variety of well-known techniques. Within this work package we research the application of these techniques in the context of accelerator control systems. We examine those techniques where the application to controls is not well understood. Among the techniques to apply are conflict avoidance, controller redundancy and failover, model-based resource monitoring, model-based configuration management, automated diagnosis, and adaptive control. The goal is to create an operational example of selected techniques applicable to the ILCTA.
1. Prototype of conflict avoidance mechanism(s) suitable for deployment at ILCTA.
2. Prototype of hardware/software resource monitoring suitable for deployment at ILCTA.
3. Prototype of configuration management example suitable for deployment at ILCTA.
4. Prototype of automated diagnosis application suitable for deployment at ILCTA.
5. Prototype of resource redundancy/failover for candidate resources (ex. CPUs, switches) suitable for deployment at ILCTA.
6. Plan for fault injection to test effectiveness of techniques."
7. Prototype of adaptive control (ex. Adjust feedback alg. due to loss of sensor/actuator) suitable for deployment at ILCTA.
8. Deployment and test of prototypes at ILCTA per test plan.
9. Documented recommendations for integration with EDR."

2. Control System Architecture
This track involves researching and documenting the overall control system architecture. Included here are the site-wide network infrastructure, client applications tier, services tier, technical equipment tier, and protocols. In addition, the set of standards, interfaces, and methodology are to be documented. Unique research is required to assure that the requirements for high availability, scalability, automation, feedback, synchronous operation, and remote operation are met with an optimized design.
"1. Common tool(s) selected for documenting architecture (ex. UML) with central document repository.
2. Documented reference network architecture.
3. Documented reference software architecture.
4. Prototype remote operations technology (ex. Role-Based Access) suitable for deployment at ILCTA."
5. Suite of documented standards and interfaces for distribution to other technical groups.
6. Simulation of network data flow and documented conclusions in relation to network architecture.
7. Deploy prototype of remote operations technology to ILCTA."

3. Controls system requirements document.

In addition, we would like to see (some of which could be
deliverables in the workpackages above):

4. Defining interface between technical systems and controls
with regard to the high availability boundary. How much do the
tech systems need to do on their own vs reporting to controls?
What kind of information needs to be reported to controls
system for diagnostic information?

5. A more detailed review/update of the controls system information
in Tom Himel's availability simulation.

1. Evaluate ATCA Basic Components Evaluate Chassis options, power systems, shelf manager operation, basic redundancy and hot-swap features using commercially available components. Develop reports & share results with collaboration.
2. Prototype HA Controls Core Test
Build up controls node test system consisting of single ATCA shelf, redundant processors, switch modules and power supplies; plus two µTCA crates each with processor, power supply, binary and analog I/O; and an external PC server. Demonstrate high level, middleware, real time OS for operation of above. Demonstrate failover & hot-swap.
3. Demonstrate AMC Cards for ATCA and µTCA
Develop Mezzanine cards for one or more key applications. Demonstrate operation with ATCA and µTCA.
4. Tools for Module Development
Specify tools for module development and testing in ILC environment. Procure and test commercial tools including ATCA and µTCA starter kits, available software, reference card test platform, shelf management components. Evaluate, recommend ananlog, RF and digital IO connectors for Rear Transition Module area for hot-swap implementation. Develop or recommend adapters to other standards such as VME to increase options for test instrumentation.
5. Evaluate µTCA Basic Components
Evaluate Chassis options, power systems, shelf manager operation, basic redundancy and hot-swap features using commercially available components. Evaluate wiring options such as half backplane on double wide chassis. Develop reports & share results with collaboration.
6. Diagnostic Processor Modules
Develop Diagnostic Processor Modules for various subsystems to collect operational data from within systems such as power modulators, redundant power supplies, RF systems. Internal dynamic data such as power waveform sampling of special interest. Develop low and high level software to manage DP data. Demonstrate simple example of intervention for machine protection, fault avoidance.

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