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Proceedings Paper

Adapting the VLT data flow system for handling high-data rates
Author(s): Stefano Zampieri; Michele Peron; Olivier Chuzel; Neil Ferguson; Jens Knudstrup; Nick Kornweibel
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Paper Abstract

The Data Flow System (DFS) for the ESO VLT provides a global approach to handle the flow of science related data in the VLT environment. It is a distributed system composed of a collection of components for preparation and scheduling of observations, archiving of data, pipeline data reduction and quality control. Although the first version of the system became operational in 1999 together with the first UT, additional developments were necessary to address new operational requirements originating from new and complex instruments which generate large amounts of data. This paper presents the hardware and software changes made to meet those challenges within the back-end infrastructure, including on-line and off-line archive facilities, parallel/distributed pipeline processing and improved association technologies.

Paper Details

Date Published: 16 September 2004
PDF: 10 pages
Proc. SPIE 5493, Optimizing Scientific Return for Astronomy through Information Technologies, (16 September 2004); doi: 10.1117/12.551221
Show Author Affiliations
Stefano Zampieri, European Southern Observatory (Germany)
Michele Peron, European Southern Observatory (Germany)
Olivier Chuzel, European Southern Observatory (Germany)
Neil Ferguson, European Southern Observatory (Germany)
Rutherford Appleton Lab. (United Kingdom)
Jens Knudstrup, European Southern Observatory (Germany)
Nick Kornweibel, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 5493:
Optimizing Scientific Return for Astronomy through Information Technologies
Peter J. Quinn; Alan Bridger, Editor(s)

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