Technical Evolution in LHC Computing

After a very successful first two years of LHC physics operations, LHC computing has entered an assessment and planning cycle in advance of a long shutdown in 2013-2014. The shutdown offers an opportunity to prepare computing for the higher energies and luminosities that will follow the shutdown, taking account of experience thus far, future LHC computing requirements, and new and emerging technologies. In the WLCG, Technical Evolution Groups were established in fall 2011 and have recently produced reports in the areas of databases, data management and storage, operations, security, and workload management. Within ATLAS, R&D projects relating to most of these areas were established in spring 2011 and in some cases are already transitioning to initial production deployments of new tools and technologies, while in others substantial work programs remain. This talk will present an overview and selected highlights of activities and plans in the technical evolution of LHC computing, with an emphasis on examples from ATLAS.