# Site Report Vienna Tier-2

- Institution: CERN
- Department: HEP Computing
- Speaker: Erich Birngruber
- Year: 2024
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3019563)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

We share our operational experience of running a converged EOS instance for 3 Experiments (CMS, Alice, Belle).

- In 2022 we've extended the capacity of the EOS cluster from 9 to 15 FSTs - In 2023 we've successfully updated to EOS 5.2.2 - The system deployment and all operational tasks are fully automated with Ansible. Most recently a gap was closed with the automation of host certificate rotation..

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## Lectures

1. [Site Report Vienna Tier-2](https://invisiblenetwork.ai/learn/cern/3019563/24f35fc03535), 12 min (CERN's player)