AlmaLinux at CERN
summary
CERN runs AlmaLinux on critical systems: the trigger farm (hardware level‑1 FPGAs cut 40 million crossings down to ~100,000 then software HLT to ~3,000 events/s), on EOS and CTA front‑end servers, and in the 5,400‑server batch cluster with 422,000 cores and 1.6 PB RAM. EOS holds ~310 PB, CTA 1.32 EB, WLCG totals ~1.3M cores and 3.7 EB across 150 sites in 42 countries. AlmaLinux is chosen for full errata support, fast CVE response, and a 10‑year lifecycle that matches CERN’s decades‑long upgrade schedule.
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chapters (9)
- 0:00Introduction and CERN overview
- 1:54CERN's computing infrastructure
- 6:51Large Hadron Collider details
- 9:44Particle detector experiments
- 15:24AlmaLinux at CERN introduction
- 17:54Data processing and storage systems
- 22:10Linux history at CERN
- 25:19Migration to AlmaLinux
- 31:44Q&A session
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