High throughput data removal system for the ALICE experiment in Run 3.
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| Title: | High throughput data removal system for the ALICE experiment in Run 3. |
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| Authors: | Şuiu, Alice-Florenţa1,2 (AUTHOR) asuiu@cern.ch, Grigoraş, Costin2 (AUTHOR), Țăpuș, Nicolae1 (AUTHOR), Betev, Latchezar2 (AUTHOR) |
| Source: | European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-15. 15p. |
| Subjects: | Data removal (Computer science), Data management, Quark-gluon plasma, Data acquisition systems, Large Hadron Collider, European Organization for Nuclear Research, Big data |
| Abstract: | The ALICE (A Large Ion Collider Experiment) experiment at CERN's Large Hadron Collider is dedicated to studying heavy-ion collisions to investigate the properties of quark–gluon plasma. Since its launch in 2009, ALICE has undergone three operational phases, accumulating substantial data: 7.4 petabytes (PB) in Run 1, 28 PB in Run 2, and 423 PB in Run 3 (as of February 2025). The transition from Run 2 to Run 3 included significant upgrades to ALICE's detectors and Data Acquisition System, resulting in a 12-fold increase in the collected data volume. This article presents a data removal tool developed for the ALICE experiment to efficiently manage storage resources. The tool consists of a web interface that allows ALICE operators to delete data and an automated workflow that, under certain conditions, removes temporary data and provides the data preparation group with a centralized interface for data management. Deployed in April 2024, the tool replaces the previous manual, email-based request system, eliminating inefficiencies and ensuring a faster, more structured, and scalable approach to data management. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | The ALICE (A Large Ion Collider Experiment) experiment at CERN's Large Hadron Collider is dedicated to studying heavy-ion collisions to investigate the properties of quark–gluon plasma. Since its launch in 2009, ALICE has undergone three operational phases, accumulating substantial data: 7.4 petabytes (PB) in Run 1, 28 PB in Run 2, and 423 PB in Run 3 (as of February 2025). The transition from Run 2 to Run 3 included significant upgrades to ALICE's detectors and Data Acquisition System, resulting in a 12-fold increase in the collected data volume. This article presents a data removal tool developed for the ALICE experiment to efficiently manage storage resources. The tool consists of a web interface that allows ALICE operators to delete data and an automated workflow that, under certain conditions, removes temporary data and provides the data preparation group with a centralized interface for data management. Deployed in April 2024, the tool replaces the previous manual, email-based request system, eliminating inefficiencies and ensuring a faster, more structured, and scalable approach to data management. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-026-15721-0 |
