[Table of Contents]

Plasma and Fusion Research

Volume 5, S1042 (2010)

Regular Articles

Clustered Data Storage for Multi-Site Fusion Experiments
Hideya NAKANISHI, Mamoru KOJIMA, Masaki OHSUNA, Setsuo IMAZU, Miki NONOMURA, Takashi YAMAMOTO, Masahiko EMOTO, Yoshio NAGAYAMA, Kazuo KAWAHATA, LHD exp. group, Makoto HASEGAWA1), Aki HIGASHIJIMA1), Kazuo NAKAMURA1) and Masayuki YOSHIKAWA2)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
1)
RIAM, Kyushu University, 6-1 Kasuga-kouen, Kasuga 816-8580, Japan
2)
PRC, University of Tsukuba, Tsukuba 305-8577, Japan
(Received 7 January 2009 / Accepted 3 August 2009 / Published 26 March 2010)

Abstract

The LABCOM data acquisition and management system already provides full functionality to both local and remote participants in Large Helical Device (LHD) experiments. This study newly added a function for dealing with raw experimental data not only from one experimental device but also from multiple distant sites. Its original distributed structure has enabled the multi-site modification to be made with a minimum of change, mainly within the data location indexing database for clustered storage. However, access permissions and restrictions for each site's data and users should be strictly implemented. The system began operation in 2008 under bilateral collaborations between the LHD, QUEST, and GAMMA10 experiments, with the goal of organizing a Fusion Virtual Laboratory in Japan.

Keywords

LABCOM, clustered storage, SINET3, LHD, QUEST, GAMMA10, multi-site, access control, Fusion Virtual Laboratory (FVL)

DOI: 10.1585/pfr.5.S1042

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This paper may be cited as follows:

Hideya NAKANISHI, Mamoru KOJIMA, Masaki OHSUNA, Setsuo IMAZU, Miki NONOMURA, Takashi YAMAMOTO, Masahiko EMOTO, Yoshio NAGAYAMA, Kazuo KAWAHATA, LHD exp. group, Makoto HASEGAWA, Aki HIGASHIJIMA, Kazuo NAKAMURA and Masayuki YOSHIKAWA, Plasma Fusion Res. 5, S1042 (2010).