EPJ Web Conf.
Volume 251, 202125th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2021)
|Number of page(s)||8|
|Section||Distributed Computing, Data Management and Facilities|
|Published online||23 August 2021|
Designing the RAL Tier-1 Network for HL-LHC and Future data lakes
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Published online: 23 August 2021
The Rutherford Appleton Laboratory (RAL) runs the UK Tier-1 which supports all the LHC experiments, as well as a growing number of others in HEP, Astronomy and Space Science. In September 2020, RAL was provided with funds to upgrade its network. The Tier-1 not only wants to meet the demands of LHC Run 3, it also wants to ensure that it can take an active role in data lake development and the network data challenges in the preparation for HL-LHC. It was therefore decided to completely rebuild the Tier-1 network with a Spine / Leaf architecture. This paper describes the network requirements and design decision that went into building the new Tier-1 network. It also includes a cost analysis, to understand if the ever increasing network requirements are deliverable in a continued flat cash environment and what limitations or opportunities this may place on future data lakes.
© The Authors, published by EDP Sciences, 2021
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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