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 HASEGAWA; Aki HIGASHIJIMA; Kazuo NAKAMURA; Masayuki YOSHIKAWA

doi:10.1585/pfr.5.S1042

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 HASEGAWA, Aki HIGASHIJIMA, Kazuo NAKAMURA, Masayuki YOSHIKAWA

Author information

Hideya NAKANISHI
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Mamoru KOJIMA
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Masaki OHSUNA
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Setsuo IMAZU
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Miki NONOMURA
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Takashi YAMAMOTO
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Masahiko EMOTO
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Yoshio NAGAYAMA
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Kazuo KAWAHATA
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
LHD exp. group
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Makoto HASEGAWA
RIAM, Kyushu University, 6-1 Kasuga-kouen, Kasuga 816-8580, Japan
Aki HIGASHIJIMA
RIAM, Kyushu University, 6-1 Kasuga-kouen, Kasuga 816-8580, Japan
Kazuo NAKAMURA
RIAM, Kyushu University, 6-1 Kasuga-kouen, Kasuga 816-8580, Japan
Masayuki YOSHIKAWA
PRC, University of Tsukuba, Tsukuba 305-8577, Japan

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

JOURNAL FREE ACCESS

2010 Volume 5 Pages S1042

DOI https://doi.org/10.1585/pfr.5.S1042

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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.

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