2-9 September 2007
Victoria, Canada
Europe/Zurich timezone
Please book accomodation as soon as possible.

LHCb experience with LFC database replication

3 Sep 2007, 17:10
20m
Saanich (Victoria, Canada)

Saanich

Victoria, Canada

oral presentation Software components, tools and databases Software components, tools and databases

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))

Presentation Materials