About
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 filesystem health, tracking quota-space view consistency, and monitoring node uptime patterns. Instance-specific configurable thresholds adapt to different deployment patterns across production, development, and archive storage. Operators manage alarms through Mattermost slash commands for diagnostics, suppression during maintenance windows with reason tracking, and status queries. Dynamic alarm suppression prevents alert fatigue. ServiceNow integration automatically creates tickets with EOS-specific context (FSID, hostport, scheduling group), updates them as conditions evolve, and closes them when metrics normalize.
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The talk
Credits and licence
- Institution
- CERN
- Speaker
- Octavian-Mihai Matei
- Year
- 2026
- Language
- English
- 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 Teens profiles and older, judged from what the source says about it. How courses are placed