Grid LHCb WP - Grid Testbed
MAP farm at Liverpool has 300 processors, would take 4 months to generate the full sample of events
All data generated (~3TB) would be transferred to RAL for archive (UK regional facility).
All AOD and TAG datasets dispatched from RAL to other regional centres, such as Lyon and CERN.
Physicists run jobs at the regional centre or ship AOD and TAG data to local institute and run jobs there. Also copy ESD for a fraction (~10%) of events for systematic studies (~100 GB).
The resulting data volumes to be shipped between facilities over 4 months would be as follows :
Liverpool to RAL 3 TB (RAW ESD AOD and TAG)
RAL to LYON/CERN/… 0.3 TB (AOD and TAG)
LYON to LHCb institute 0.3 TB (AOD and TAG)
RAL to LHCb institute 100 GB (ESD for systematic studies)