Author:
Doria Alessandra,Carlino Gianpaolo,De Salvo Alessandro,Spisso Bernardino,Vilucchi Elisabetta
Abstract
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 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.
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