# Operation Status of CDS for ALICE experiment

- Institution: CERN
- Department: HEP Computing
- Speaker: Sang Un Ahn
- Year: 2023
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3003293)
- 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 present the current operation status of CDS (the Disk-based Custodial Storage) for ALICE experiment. The CDS is based on EOS Erasure Coding implementation with four parity mode to match with Tape based archival storage in terms of data protection. We will discuss briefly the plan of CDS operation automation for hardware intervention, especially the disk replacement, and of its expansion to meet the upcoming pledges. Also we will discuss the cost analysis of CDS for long-term basis..

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## Lectures

1. [Operation Status of CDS for ALICE experiment](https://invisiblenetwork.ai/learn/cern/3003293/466a03ffecab), 26 min (CERN's player)