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Proceedings Paper

Peta byte data hierarchy supporting real-time feedback to the observation by Subaru Telescope: STN-II
Author(s): Ryusuke Ogasawara; George Kosugi; Tadafumi Takata; Yoshihiko Mizumoto; Naoki Yasuda; Masafumi Yagi; Kenji Kawarai; Atsushi Kawai
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Paper Abstract

The first generation of STN with 150TB tape library has been utilized by Subaru telescope for the past several years of operation. We are upgrading the storage system to 600TB of capacity based on the Digital Tape Format 2 of SONY Ltd, in March 2002, so called STN-II. The engine is changed from the VPP700 of Fujitsu Ltd., twenty two vector processors are connected by a cross bar network to the cluster of PrimePower2000 of Fujitsu Ltd., which consists of 128 processors each, with 384GB of quasi-shared memory in total. Data management servers and graphical workstations are connected by the Storage Area Network technology. There are two dedicated clusters of workstations for daily development of software for the archive system, STARS, and for the platform of the data analysis pipeline, DASH. These two software components are combined into the Subaru Software Trinity, with the observation control system, SOSS. The STN-II system is the platform to support observation data flow of the Subaru Telescope with the Subaru Software Trinity. Adopting a powerful computation and fast network, a system for real time quality measurement of the observation is planned and quick feedback to the observation parameter will be possible on the system.

Paper Details

Date Published: 2 January 2002
PDF: 9 pages
Proc. SPIE 4844, Observatory Operations to Optimize Scientific Return III, (2 January 2002); doi: 10.1117/12.460615
Show Author Affiliations
Ryusuke Ogasawara, Subaru Telescope/National Astronomical Observatory of Japan (United States)
George Kosugi, Subaru Telescope/National Astronomical Observatory of Japan (United States)
Tadafumi Takata, Subaru Telescope/National Astronomical Observatory of Japan (United States)
Yoshihiko Mizumoto, National Astronomical Observatory of Japan (Japan)
Naoki Yasuda, National Astronomical Observatory of Japan (Japan)
Masafumi Yagi, National Astronomical Observatory of Japan (Japan)
Kenji Kawarai, Fujitsu America Inc. (United States)
Atsushi Kawai, Fujitsu America Inc. (United States)


Published in SPIE Proceedings Vol. 4844:
Observatory Operations to Optimize Scientific Return III
Peter J. Quinn, Editor(s)

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