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HPC challenges, expectations, and solutions

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Mitglied in der Helmholtz-Gemeinschaft<br />

Support for LOFAR / GLOW<br />

Network & security<br />

LOFAR station<br />

Groningen<br />

Surfnet/<br />

Netherlight<br />

DWDMconnection<br />

JSC-Surfnet Peering at a<br />

building of the University of<br />

Aachen (RWTH)<br />

2 x 10GE provided<br />

by Surfnet<br />

~45 Km Fibre<br />

DWDM-connection<br />

2 x 10GE by JSC<br />

4 LOFAR Storage<br />

Server<br />

20th September 2011 AG 2011 Splinter Meeting LOFAR, SKA 4<br />

FZJ-JSC<br />

JuNet<br />

Juelich<br />

Antenna Field<br />

Long term<br />

archive<br />

5 x 10GE from<br />

Antenna Fields<br />

Supercomputer<br />

resources<br />

X-Win /<br />

Internet<br />

DFN<br />

DWDM-connections<br />

Data Access via<br />

Public Internet <strong>and</strong><br />

D-Cache authentication/<br />

protocols<br />

Antenna Fields<br />

Bonn/Effelsberg<br />

Unterweilenbach<br />

Tautenburg<br />

Potsdam

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