Learn · CERN

Talk20 min

Apollon & Hermes: Next step in EOS disk operations

Octavian-Mihai Matei · CERN

Watch At CERN

About

This presentation introduces Apollon and Hermes, two complementary tools that automate the complete disk lifecycle. Apollon is a centralized gRPC service that manages automated draining, intelligent repair of failed drains through dynamically-loaded plugin strategies, and systematic leftover file handling. Hermes runs on each storage node, interfacing with repair catalogue systems to detect disk failures, coordinate draining with Apollon, and automatically register replacement disks.

Together, these tools transform disk operations from a multi-step manual process into an automated workflow requiring intervention only for physical disk replacement, significantly reducing operational fragmentation while enhancing reliability.

00:00:00 Slide 1

00:00:28 Slide 2

00:01:32 Slide 3

00:02:00 Slide 4

00:02:22 Slide 5

00:02:53 Slide 6

00:03:17 Slide 7

00:03:48 Slide 8

00:04:32 Slide 9

00:04:53 Slide 10

The talk

  1. Apollon & Hermes: Next step in EOS disk operations 2026-03-10 · 20 min · CERN's player

Credits and licence

Institution
CERN
Speaker
Octavian-Mihai Matei
Year
2026
Language
English
Subjects
Business and management
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
Who can watch
CERN gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed