The LHC detectors have an unprecedented precision and granularity. One physics event needs a few Megabytes of storage. Experiments expect to store 109 events per year and about half this amount for simulation
The lectures give an in-depth view of the challenges to be met when running a few thousand CPU's in parallel per LHC-experiment, when storing a few dozen Petabytes of data for analysis (in an effectively structured way) and when providing CPU power and data volumes easily accessible for physicists wherever they work.
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