# EOS for Administrators

- Institution: CERN
- Department: HEP Computing
- Taught by: Michael Davis, Elvin Alin Sindrilaru, Andreas Joachim Peters
- Year: 2023
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3013348)
- 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)

In this seminar we will go through the architecture of EOS, showcase some EOS instanace configuration and follow with an introduction to CTA!

We will explain some generic concepts, deployment models, hardware requirements, redundancy models, storage layout, scheduling & file placement - CPU, Storage and Network requirements and few tricks to optimize these. We highlight in detail the XRootD framework and how EOS is implemented using it. We will go through all components and sub services of the namespace service MGM, what there role is and point you to the relevant documentation.

The second part will showcase some EOS instances and some of their configuration at CERN.

In the third part of the presentation we will introduce the CERN Tape Archive CTA.

We hope there is enough time available to keep the seminar interactive and allow for questions during the presentation..

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## Lectures

1. [EOS for Administrators](https://invisiblenetwork.ai/learn/cern/3013348/7167f1f94306), 1 h 47 min (CERN's player)