Architecture Issues

• Scaleable & Stageable Architecture. ATLAS is expected to propose, with the TDAQ TDR, an architecture which respects the requirements for scalability imposed by the ATLAs deferral scenarios and suggested by the LHC machine performance profile. The architecture is expected to support an initial implementation which satisfies the available budget at a reduced performance. Subsequently the TDAQ system shall scale up, in one or more stages, to match the additional required performance compatibly with the availability of funds. Today the ATLAS TDAQ architecture may not easily support the above concept of scalability. There may be different variations of the existing architecture which could satisfy the requirements; it has not been decided yet in which context these variations will be studied. However it will part of the working group to incorporate the selected base line solution (or scenario) into the general architecture description.
• Monitoring. Collect requirements related to 1) types of monitoring, 2) sources of monitoring data, 3) amount of monitoring data and 4) destinations for monitoring data. A definition of the issue may be found here.
• Errors. A definition of the issue may be found here.
• Networks
• Common control and Supervision
• Interfaces
• Compliance to partitioning requirements
• Coherence of states
• Databases

This page was last edited on Friday, 25 October 2002 17:55