Dario Barberis: ATLAS SC4 Plans WLCG SC4 Workshop - Mumbai, 12 February 2006 https://twiki.cern.ch/twiki/pub/LCG/TalksAndDocuments/sc4-expt-plans.ppt ATLAS SC4 Plans (1) l Tier-0 data flow tests: nPhase 0: 3-4 weeks in March-April for internal Tier-0 tests Explore limitations of current setup Run real algorithmic code Establish infrastructure for calib/align loop and conditions DB access Study models for event streaming and file merging Get input from SFO simulator placed at Point 1 (ATLAS pit) Implement system monitoring infrastructure nPhase 1: last 3 weeks of June with data distribution to Tier-1s Run integrated data flow tests using the SC4 infrastructure for data distribution Send AODs to (at least) a few Tier-2s Automatic operation for O(1 week) First version of shifters interface tools Treatment of error conditions nPhase 2: 3-4 weeks in September-October Extend data distribution to all (most) Tier-2s Use 3D tools to distribute calibration data l The ATLAS TDAQ Large Scale Test in October-November prevents further Tier-0 tests in 2006… n… but is not incompatible with other distributed operations No external data transfer during this phase( )
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