CERN Accelerating science

Article
Report number	physics/0305134 ; CHEP-2003-TUAT008
Title	Next-Generation EU DataGrid Data Management Services
Related title	DATA GRID
Author(s)	Bosio, Diana (CERN) ; Casey, James (CERN) ; Frohner, Akos (CERN) ; Guy, Leanne (CERN) ; Kunszt, Peter (CERN) ; Laure, Erwin (CERN) ; Lemaitre, Sophie (CERN) ; Lucio, Levi (CERN) ; Stockinger, Heinz (CERN) ; Stockinger, Kurt (CERN) ; Bell, William (Glasgow U. ; Helsinki Inst. of Phys.) ; Cameron, David (Glasgow U. ; Helsinki Inst. of Phys.) ; McCance, Gavin (Glasgow U. ; Helsinki Inst. of Phys.) ; Millar, Paul (Glasgow U. ; Helsinki Inst. of Phys.) ; Hahkala, Joni (Glasgow U. ; Helsinki Inst. of Phys.) ; Karlsson, Niklas (Glasgow U. ; Helsinki Inst. of Phys.) ; Nenonen, Ville (Glasgow U. ; Helsinki Inst. of Phys.) ; Silander, Mika (Glasgow U. ; Helsinki Inst. of Phys.) ; Mulmo, Olle (Swedish Natural Sci. Res. Council) ; Volpato, Gian-Luca (Swedish Natural Sci. Res. Council) ; Andronico, Giuseppe (INFN, Catania) ; DiCarlo, Federico (INFN, Rome) ; Salconi, Livio (INFN, Pisa) ; Domenici, Andrea (DIIEIT, Pisa) ; Carvajal-Schiaffino, Ruben (CNR, CeFSA) ; Zini, Floriano (CNR, CeFSA)
Publication	2003
Imprint	2003-05
Number of pages	8
In:	eConf C 0303241 (2003) pp.TUAT008
In:	2003 Conference for Computing in High-Energy and Nuclear Physics, La Jolla, CA, USA, 24 - 28 Mar 2003, pp.TUAT008
Subject category	Other Fields of Physics ; physics
Abstract	We describe the architecture and initial implementation of the next-generation of Grid Data Management Middleware in the EU DataGrid (EDG) project. The new architecture stems out of our experience and the users requirements gathered during the two years of running our initial set of Grid Data Management Services. All of our new services are based on the Web Service technology paradigm, very much in line with the emerging Open Grid Services Architecture (OGSA). We have modularized our components and invested a great amount of effort towards a secure, extensible and robust service, starting from the design but also using a streamlined build and testing framework. Our service components are: Replica Location Service, Replica Metadata Service, Replica Optimization Service, Replica Subscription and high-level replica management. The service security infrastructure is fully GSI-enabled, hence compatible with the existing Globus Toolkit 2-based services: moreover, it allows for fine-grained authorization mechanisms that can be adjusted depending on the service semantics.

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