Background - LHC Distributed Computing with Regional Centers
- Scale
- PetaBytes of data in Object Database
- Over a thousand physicists
- Regional Centers
- Fermilab, INFN, others
- Partially for funding reasons
- Lifecycle 15-20 years
- Constant accumulation of data
- Changes to software and data
- Network distributed data access and processing system
- Individual and group analysis tasks
- Need transparent read/write access to the database federation
- Local, at CERN, or elsewhere
- Memory, disk, tape or other tertiary storage
- Decide whether to transport or recompute
Example Regional Center configuration