EOS 2026 Workshop

Session

Operational Tools & Configuration

10 Mar 2026, 14:00

222/R-001 (CERN)

6. Apollon & Hermes: Next step in EOS disk operations

Octavian-Mihai Matei (CERN)

10/03/2026, 14:00

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...

4. EOS Deployments through Ansible Automation

Martin Vala (Pavol Jozef Safarik University (SK))

10/03/2026, 14:20

This contribution outlines the use of Ansible to automate the deployment and lifecycle management of EOS clusters. By utilizing declarative playbooks, we orchestrate the setup of MGM and FST components while ensuring consistent configuration of the QuarkDB metadata backend and XRootD framework. This automated approach eliminates manual errors, simplifies complex version upgrades, and enables...

8. CERN Disk Benchmark Tool

Andreas Joachim Peters (CERN)

10/03/2026, 14:35

The CERN Disk Benchmark Tool benchmarks Linux block devices and filesystems by measuring sustained large-block write speed and in-place file rewrite performance at a chosen mount point. It supports parallel I/O and captures device statistics with iostat. The tool generates throughput-versus-usage plots and produces a self-contained PDF report, including configuration metadata for reproducible analysis.

7. EOS-Alarms - Status Automatic Monitoring

Octavian-Mihai Matei (CERN)

10/03/2026, 14:50

EOS-Alarms is managed by a multitude of subsystems. This talk will focus on Winston, which is an alarm management system that automates EOS health monitoring by continuously analyzing core subsystems through parsing JSON output from EOS commands.
Winston understands EOS-specific operational patterns, distinguishing spare scheduling groups from active ones, correlating drain status with...

24. EOS ChatBot - Pilot Evaluation & Campaign Proposal

Dr Maria Arsuaga Rios (CERN)

10/03/2026, 15:10

A brief, transparent update on EOS ChatBot, an AI assistant prototype integrated into Mattermost and the EOS Community forum. This session covers what EOS ChatBot is designed for, why a full evaluation is premature, what we are measuring, and a concrete plan leading to a data-driven decision in May. Includes a practical walkthrough of how to use it today.