Luca dell'Agnello (INFN-CNAF)
INFN CNAF is a multi experiment computing center acting as Tier-1 for LCG but also supporting other HEP and non HEP experiments and Virtual Organizations. The CNAF Tier-1 is one of the main Resource Centers of the Grid Infrastructure (WLCG/EGEE); the preferred access method to the center is through WLCG/EGEE and INFNGRID middleware and services. Critical issues to be addressed to meet the requirements of the LHC experiments are stability, robustness and scalability of the services provided: in particular technical infrastructural services like power supply and cooling, CPU, data handling systems and network infrastructure to cope with the amount of data foreseen in the LHC era, database and experiment-specific services, monitoring, authorization and accounting, and 24x7 support. In this poster we present the current status of the INFN Tier-1 infrastructure and services, an assessment of the experiences gained so far, and the expected evolution leading to the startup of LHC experiments.