Speaker
Dr
Andreas Heiss
(FORSCHUNGSZENTRUM KARLSRUHE)
Description
GridKa, the German Tier-1 center in the Worldwide LHC Computing Grid (WLCG), supports
all four LHC experiments, ALICE, ATLAS, CMS and LHCb as well as currently some
non-LHC high energy physics experiments. Several German and European Tier-2 sites
will be connected to GridKa as their Tier-1. We present technical and organizational
aspects pertaining the connection and support of the Tier-2s sites. The experiments'
computing models and use cases are analyzed in order to design and dimension the
storage systems and network infrastructure at GridKa in such a way that the expected
data streams can be written and delivered at all times during Service Challenge 4 and
the LHC service. The current and planned layout of these systems is described. First
results of data transfer tests between GridKa and the Tier-2 sites are shown.
Primary author
Dr
Andreas Heiss
(FORSCHUNGSZENTRUM KARLSRUHE)
Co-authors
Mr
Bruno Hoeft
(FORSCHUNGSZENTRUM KARLSRUHE)
Dr
Doris Ressmann
(FORSCHUNGSZENTRUM KARLSRUHE)
Mr
Jos van Wezel
(FORSCHUNGSZENTRUM KARLSRUHE)
Dr
Silke Halstenberg
(FORSCHUNGSZENTRUM KARLSRUHE)
