Offline data taking and processing Raw Data Registration Raw Data Processing Pass 1-6 completed for 900 GeV and 2360 GeV data Pass 0 @T0 introduced for calibration Pass 1 @T0 for 7 TeV data follows the data taking Analysis train running weekly: QA, physics working groups organized analysis 13.7 Mio collision events Run processing – start immediately after RAW data transferred to CERN MSS Average – 5 hours per job At 10 hours, 95% of the run is processed At 15 hours, 99% of the run is processed MC production Several production cycles for 900 GeV and 7 TeV MB pp: 17 Mio events with various generators (Phytia, PHOJET) and conditions from real data taking

Computing resources New LHC schedule: 2010: 1.5×109 pp events (1×109 MB + 0.5×109 rare triggered) 6.4×107 PbPb events (saturating the 1.25GB/s bandwidth) 2011 0.6×109 pp events (0.1×109 MB + 0.5×109 rare triggered) 2012: no data taking Switched from calendar year to RRB year 2010: June 2010 – March 2011 2011: April 2011 – March 2012 Optimize usage of resources by assigning any task (analysis train, end-user analysis, MC production) to any site category whenever resources are available