# Taming Batch Access to EOS at CERN

- Institution: CERN
- Department: HEP Computing
- Speaker: Andreas Joachim Peters
- Year: 2022
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3009283)
- 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)

Physics and CERNBOX instances at CERN are exposed to O(4) mount clients simultaneously. Overloads from batch access is not a new thing - since years the AFS filesystem suffers more or less frequently volume overloads. During overload episodes meta-data access at the MGM slows down significantly because thousands of batch nodes compete against few interactive clients and sync & share access. To give handles to the storage operation team EOS provides a set of access limitation features, which will be introduced in this talk..

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## Lectures

1. [Taming Batch Access to EOS at CERN](https://invisiblenetwork.ai/learn/cern/3009283/074050361bee), 7 min (CERN's player)