Until now, Sloan Digital Sky Survey (SDSS) datasets have been shared with collaborators using Federal Express. Optical paths and new transport protocols are enabling these datasets to be transported using networks over long distances. The SDSS DR3 multi-terabyte dataset is transported between Chicago and various sites in Europe and Asia using NCDM's data transport protocol UDT (UDP-based Data Transport Protocol) over the Teraflow Testbed. The Teraflow Testbed is an infrastructure designed to test new 10Gb network protocols and data services with high-volume data flows, or teraflows, over both traditional routed networks as well as optical networks.
URL:
www.teraflowtestbed.net
www.sdss.org
Contact:
Robert Grossman, National Center for Data Mining (NCDM), University of Illinois at Chicago (UIC), USA, grossman @ uic.edu
Collaborators:
NCDM, UIC, USA:
Robert Grossman, Yunhong Gu, David Hanley, David Turkington, Shirley Connelly
Korea Astronomy and Space Science Institute, Korea:
Changbom Park, Jongsoo Kim, Bongkyu Kim
Korea Institute of Science and Technology Information, Korea:
Minsun Lee
Department of Astronomy, School of Science, University of Tokyo, Japan:
Sadanori Okamura
National Astronomical Observatory, China:
Chenzhou Cui, Yongheng Zhao
Chinese Academy of Sciences, China:
Kai Nan
School of Physics, University of Melbourne, Australia:
David Barnes
Max-Planck-Institut für Plasmaphysik, Germany:
Hermann Lederer
