Speaker
Barbara Martelli
(Italian INFN National Center for Telematics and Informatics (CNAF))
Description
Database replication is a key topic in the LHC Computing GRID environment to allow
processing of data in a distributed environment. In particular LHCb computing model
relies on the LHC File Catalog (LFC). LFC is the database catalog which stores
informations about files spread across the GRID, their logical names and physical
locations of all their replicas. The LHCb computing model requires the LFC to be
replicated at Tier1s via Oracle Streams technology.
This paper will describe the LFC replicas deployment at Italian INFN National Center
for Telematics and Informatics (CNAF) and at other LHCb Tier1 sites and will present
subsequent stress test results. The tests were designed to evaluate any delay on the
propagation of the streams and the scalability of the system. The tests show the
robustness of the replica implementation with performance going beyond the
experiment's requirements.
Primary authors
Angelo Carbone
(Italian National Institute of Nuclear Physics (INFN-Bologna), Italian INFN National Center for Telematics and Informatics (CNAF))
Barbara Martelli
(Italian INFN National Center for Telematics and Informatics (CNAF))
Federico Bonifazzi
(Italian INFN National Center for Telematics and Informatics (CNAF))
Gianluca Peco
(Italian National Institute of Nuclear Physics (INFN-Bologna))
