Abstracts

TUAP054 (Poster)

SAN/AFS: Developments in Storage Data Systems on Frascati Tokamak Upgrade

A. Bertocchi, G. Buceti, C. Centioli, F. Iannone, M. Panella, V. Vitale

In the last three years, the architecture of Frascati Tokamak Upgrade (FTU) experimental database has undergone meaningful modifications, as data and codes migration from mainframe to UNIX platforms [1] and AFS (Andrew File System) adoption as distribuited file system [2]. Next improvement we added regards data storage system. The choice of SAN (Storage Area Network) over Fibre Channel [3], which include two 100MB/s Fabric topologies channels, combined with power and flexibility of AFS, makes data management over FTU very reliable. Performance tests have been set up, showing better transfer rate than previous system, based on JBOD modules with SCSI connection. A description of new storage system will be presented, focusing particularly on reliability for AFS multi-platform clients to access experimental data quickly and safely, with high availability made possible by RAID technology. Results will also be presented about tests carried out on two different systems, to make evidence the better price/performance ratio of new architecture.

[1] G.Bracco et al., 'Data analysis software on the FTU experiment and its recent developments' First Workshop of the IAEA Technical Committee Meeting on Data Acquisition and Management for Fusion Research, July 22-24, 1997, IPP Garching, Germany Fusion Engineering and Design 43 (1999) 425-432

[2] A. Bertocchi et al., 'Recent Developments and Object-Oriented Approach in FTU Database' 21st SOFT Symposium on Fusion Technology, 11-15 Sept. 2000 Madrid, Spain, paper E-23

[3] O. Barazza, T. Uhler, 'Storage Area Network: The Superior Storage Solution' Dot Hill Systems Corp.(2000)

eCONF C011127    ePROCEEDINGS COMMITTEES PARTICIPANTS    PROGRAM SUMMARY ICALEPCS 2001  eCONF
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