The ESO Data Transfer System

Details The ESO Data Transfer System The ESO Data Transfer System

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..411..540z&link_type=abstract

Astronomical Data Analysis Software and Systems XVIII ASP Conference Series, Vol. 411, proceedings of the conference held 2-5 No

Astronomy and Astrophysics

Astronomy

2

Scientific paper

As of July 2008 all data produced at the ESO Paranal Observatory are transferred automatically to the main archive in Garching via the internet, reducing the ``time to archive'' from several days to a few minutes or hours. The almost immediate availability of data in Garching will significantly speed up the quality-control feedback loop to Paranal and will result in a better service provided to the ESO community. This paper describes some of the technical challenges of transferring large volumes of data over a high-latency network with ``just enough'' bandwidth, and the solutions we adopted to optimize the bandwidth usage and to provide a highly reliable, flexible, priority-based transfer.

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