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Elvin Alin Sindrilaru (CERN)24/03/2025, 15:00
This presentation will give a short overview of the past releases and significant changes, new features and bug fixes.
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Cedric Caffy (CERN)24/03/2025, 15:20
With the continuous growth in the use of the HTTP protocol for file transfers within the WLCG community, several enhancements and optimisations have been introduced to the EOS HTTP and XRootD HTTP stacks.
From updates to the SciTags and packet marking specifications to addressing libcurl internal modifications, 2024 presented a number of challenges that required targeted solutions.
This...
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Andreas Joachim Peters (CERN)24/03/2025, 15:45
We will give an overview of new features for storage tiering in EOS version 5.3
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Mr Abhishek Lekshmanan (CERN)24/03/2025, 16:25
Every operation that modifies/queries the metadata from the persistent metadata storage QuarkDB goes via QClient. We look at some current bottlenecks and improvements that v5.3 offers with various configurations.
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Gianmaria Del Monte (CERN)24/03/2025, 16:45
One of a critical components in EOS is fsck, responsible for scanning, verifying, and repairing inconsistencies in the filesystem.
This talk will provide an in-depth exploration of fsck in EOS, covering its architecture, scanning mechanisms, and repair strategies. We will discuss recent improvements, including the introduction of a best-effort mode, and enhancements in erasure-coded file...
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David Smith (CERN)24/03/2025, 17:05
A software development motivated by an EOS use case is explained: file cloning to facilitate updates of erasure-coded files.
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Andreas Joachim Peters (CERN)24/03/2025, 17:20
We will present an overview of the current state of the S3 gateway for EOS.
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Gianmaria Del Monte (CERN)25/03/2025, 09:30
EOS is a powerful and flexible storage system, but setting up a new instance from scratch requires a solid understanding of its configuration and operational best practices. This talk will provide a step-by-step guide to deploying EOS, covering key components and essential configurations.
We will walk through the setup process, including storage provisioning, replication, erasure coding,...
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Luca Mascetti (CERN)25/03/2025, 09:50
Data federations with EOS offers various approaches to seamlessly integrate and manage distributed storage across heterogeneous environments. This presentation explores multiple federation techniques and namespace aggregation with remote EOS instances. We will discuss the advantages and trade-offs of each method, considering factors such as performance, scalability, security, and ease of...
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Gianmaria Del Monte (CERN)25/03/2025, 10:10
Ensuring the availability of EOS instances is crucial for large-scale storage operations. To enhance monitoring and incident response, we have developed a new distributed probe designed to detect and alert operators about instance malfunctions in real-time.
This talk will introduce the architecture and functionality of the probe, which runs across multiple nodes to provide redundancy and...
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Abhishek Lekshmanan (CERN)25/03/2025, 10:30
For a stuck/non responsive EOS MGM, some simple diagnostic information can go a long way. We look at a new eos-diagnostic-tool for dumping stacktraces etc. for submitting useful bug reports. We also invite discussions on how to improve the tooling for the future.
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Cedric Caffy (CERN)25/03/2025, 11:20
On the 30th of June 2024, the end of CentOS 7 support marked a new era for the operation of the multi-petabytes distributed disk storage system used by CERN physics experiments. The EOS infrastructure at CERN is composed of aproximately 1000 disk servers and 50 metadata management nodes. Their transition from CentOS 7 to Alma 9 was not as straightforward as anticipated.
This presentation...
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Dr Maria Arsuaga Rios (CERN)25/03/2025, 11:40
This work presents an evaluation of JUMBO frame tests conducted at CERN to assess their impact on data transfer performance across different physics workflows. Preliminary internal tests were carried out to analyze potential benefits and challenges, followed by collaborative testing involving the ATLAS, CMS, and LHCb experiments. The goal was to measure the advantages of JUMBO frames in terms...
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Octavian-Mihai Matei (CERN)25/03/2025, 12:00
The 50-year-old Meyrin Data Centre (MDC), still remains indispensable due to its strategic geographical location and unique electrical power resilience even if CERN IT recently commissioned the Prévessin Data Centre (PDC), doubling the organization’s hosting capacity in terms of electricity and cooling. The Meyrin Data Centre (Building 513) retains an essential role for the CERN Tier-0 Run 4...
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Dr Maria Arsuaga Rios (CERN)25/03/2025, 14:00
This work presents an overview of the EOS operations at CERN, focusing on its role in supporting physics data processing and storage. EOS is a high-performance distributed storage system designed to handle the vast volumes of scientific data generated by CERN experiments. This study examines key performance metrics, recent achievements, and strategic objectives for the current year,...
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Dr Yujiang BI (Institute of High Energy Physics, Chinese Academy of Sciences)25/03/2025, 14:25
In this talk, we want to share our experiences of EOS at IHEP, including migration from CentOS 7 to Almalinux 9, construction of Alice EOS, and dual-site deployment of LHCb T1 EOS.
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Armin Burger25/03/2025, 14:45
The Joint Research Centre (JRC) of the European Commission is running the Big Data Analytics Platform (BDAP) to enable the JRC projects and scientists to store, process, and analyze a wide range and large amount of data, and to share and disseminate data products.
EOS is the main system of BDAP for storing scientific data. The BDAP services are actively used by more than 100 JRC projects,...
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Dr Paulo Nobre (INPE), Wanderley Mendes (INPE)25/03/2025, 15:05
The National Institute for Space Research - INPE (Brazil) is leading a research program: Intelligent Early Warning System for Climate Extremes - SIPEC. The project aims at predicting the likelihood of climate extremes, months in advance using a diverse source of data coming from satellites and an array of intelligent sensors spread across the country. Such data streams will feed both...
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Ryan Taylor (University of Victoria (CA))25/03/2025, 15:50
I will discuss our Kubernetes-based EOS deployment as it approaches production readiness for our ATLAS T2 site, as well as evaluation of EOS for several astronomy projects.
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Jan Iven (CERN), Diogo Castro (CERN)25/03/2025, 16:10
CERNBox and EOS HOME/PROJECT(/MEDIA) operational issues seen in 2024 and expected in 2025.
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Stefan Piperov (Purdue University (US))25/03/2025, 16:30
In December of 2024 the EOS cluster at Purdue University suffered a security incident which wiped out all metadata of our production deployment. In this brief talk we will give a step-by-step example of what it takes to recover from such setback, and discuss the best backup practices.
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Andreas Joachim Peters (CERN)26/03/2025, 09:30
This presentation will report about the benchmarking results of various EOS setups at CERN using the new RNTuple framework.
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Guilherme Amadio (CERN)26/03/2025, 10:00
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Luca Mascetti (CERN)26/03/2025, 10:20
Current & future storage hardware at CERN.
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Andreas Joachim Peters (CERN), Elvin Alin Sindrilaru (CERN)26/03/2025, 11:00
We will outline the EOS development roadmap, highlighting key milestones, upcoming features, and future plans. This presentation will provide insights into ongoing improvements, strategic goals, and the evolving direction of EOS.
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26/03/2025, 11:20
Survey Topics
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- Ansible Configuration for EOS
- SquashFS as small File Repository -
Andreas Joachim Peters (CERN)26/03/2025, 14:00
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Elvin Alin Sindrilaru (CERN)26/03/2025, 14:30
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Guilherme Amadio (CERN)26/03/2025, 15:00
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Elvin Alin Sindrilaru (CERN)26/03/2025, 15:30
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Elvin Alin Sindrilaru (CERN)
In this presentation, we will go through the recent changes of the FSCK functionality that is now capable of addressing both RAIN and replica file layouts. Moreover, this will also include detail on the recently added best-effort functionality to address files which are in a broken state.
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