Caitriana Nicholson University of Glasgow. Dynamic Data Replication in LCG 2008. Outline. Introduction Grid Replica Optimisation The OptorSim grid simulator OptorSim architecture Experimental setup Results Conclusions. Introduction.
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Caitriana NicholsonUniversity of Glasgow
Dynamic Data Replication in LCG 2008
è use simulation to investigate behaviour
èinvestigate dynamic data replication
…and dynamic replica optimisation in particular
= optimisation of the placement of file replicas on grid sites…
…in a dynamic, automated fashion
~1 year’s AOD (analysis data)
(total dataset size)
(Total number of file requests)
Results: Data Replication
Results: Site Policies
Results: Access Patterns