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Distributed caching system for multi-site DPM storage

Alessandra Doria, Gianpaolo Carlino, Alessandro De Salvo, Bernardino Spisso, Elisabetta Vilucchi, P. Hristov, A. Forti, L. Betev, M. Litmaath, O. Smirnova
2019 EPJ Web of Conferences  
The main goal of this work, in the context of WLCG, is to test a storage setup where the storage areas are geographically distributed and the system provides some pools behaving as data caches. Users can find data needed for their analysis in a local cache and process them locally. We first demonstrate that the distributed setup for a DPM storage is almost transparent to the users, in terms of performance and functionalities. Then, we implement a mechanism to fill the storage cache with data
more » ... cache with data registered in Rucio Data Management system and we test it, running a physics analysis that gets its input data from the cache. Thus we demonstrate that the use of such a system can be useful for diskless sites with a local cache only, allowing to optimize the distribution and analysis of experimental data.
doi:10.1051/epjconf/201921404056 fatcat:rtzou6oitngo5dleazov4vyldy