EOS 2025 Workshop

Session

Site Evolution

25 Mar 2025, 11:20

40/S2-D01 - Salle Dirac (CERN)

11. A Distributed Storage Odyssey: from CentOS7 to ALMA9

Cedric Caffy (CERN)

25/03/2025, 11:20

On the 30th of June 2024, the end of CentOS 7 support marked a new era for the operation of the multi-petabytes distributed disk storage system used by CERN physics experiments. The EOS infrastructure at CERN is composed of aproximately 1000 disk servers and 50 metadata management nodes. Their transition from CentOS 7 to Alma 9 was not as straightforward as anticipated.

This presentation...

19. Evaluating Jumbo frames performance across LHC experiments

Dr Maria Arsuaga Rios (CERN)

25/03/2025, 11:40

This work presents an evaluation of JUMBO frame tests conducted at CERN to assess their impact on data transfer performance across different physics workflows. Preliminary internal tests were carried out to analyze potential benefits and challenges, followed by collaborative testing involving the ATLAS, CMS, and LHCb experiments. The goal was to measure the advantages of JUMBO frames in terms...

12. Refurbishing the Meyrin Data Centre: Storage Juggling and Operations

Octavian-Mihai Matei (CERN)

25/03/2025, 12:00

The 50-year-old Meyrin Data Centre (MDC), still remains indispensable due to its strategic geographical location and unique electrical power resilience even if CERN IT recently commissioned the Prévessin Data Centre (PDC), doubling the organization’s hosting capacity in terms of electricity and cooling. The Meyrin Data Centre (Building 513) retains an essential role for the CERN Tier-0 Run 4...