EPJ Web Conf.
Volume 245, 202024th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2019)
|Number of page(s)||6|
|Section||7 - Facilities, Clouds and Containers|
|Published online||16 November 2020|
Preparing CERN Tier-0 data centres for LHC Run 3
CERN, 1211 Geneva 23, Switzerland
Published online: 16 November 2020
Since 2013 CERN’s local data centre combined with a colocation infrastructure at the Wigner data centre in Budapest  have been hosting the compute and storage capacity for Worldwide LHC Computing Grid (WLCG)  Tier-0. In this paper we will describe how we try to optimize and improve the operation of our local data centre to meet the anticipated increment of the physics compute and storage requirements for Run 3, taking into account two important changes on the way: the end of the co-location contract with Wigner in 2019 and the loan of 2 out of 6 prefabricated compute modules being commissioned by the LHCb experiment  for their online computing farm.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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