ISTITUTO NAZIONALE DI FISICA NUCLEARE CNAF–Bologna INFN/TC-04/15 6 Settembre 2004 PILOT PRODUCTION GRID INFRASTRUCTURE FOR HIGH ENERGY PHYSICS APPLICATIONS Sergio Andreozzi 1 , Daniele Bonaccorsi 2 , Vincenzo Ciaschini 1 , Alessandro Cavalli 1 , Flavia Donno 3 , Sergio Fantinel 4 , Federica Fanzago 5 , Antonia Ghiselli 1 , Alessandro Italiano 1 ,Mirco Mazzucato 5 , Andrea Sciaba 3 , Heinz Stockinger 5 , Gennaro Tortone 6 , Marco Verlato 5 , Cristina Vistoli 1 1) INFN-CNAF, Viale Berti Pichat 6/2, 40127 Bologna, Italy 2) INFN-BO, Viale Berti Pichat 6/2, 40127 Bologna, Italy 3) INFN-PI, Via F. Buonarroti 2, 56100 Pisa, Italy 4) INFN-Lab. Naz. di Legnaro, Via Romea 4, 35020 Legnaro, Italy 5) INFN-PD, Via Marzolo 8, 35131 Padova, Italy 6) INFN-NA, Via Cintia ed. G, 80126 Napoli, Italy Abstract Current Data Grid tools are enhancing and getting more mature. On the other hand, several application users express their needs and requirements to deploy Grid tools in their daily work. Thus, there is a strong need that Grid tools make the transition from prototype tools to production tools. We have made several improvements and additions to an early release of the European DataGrid software tools in order to meet the requirements of data intensive sciences. We show that our software release is stable and performs well in order to be used in an international production infrastructure for physics data simulation with one High Energy Physics experiment. Furthermore, we outline the experience with interoperability solutions from the Grid Laboratory Uniform Environment (GLUE) activity. Published by SIS–Pubblicazioni Laboratori Nazionali di Frascati