# Cold storage using S3+GLACIER+CTA

- Institution: CERN
- Department: HEP Computing
- Speaker: Michael Davis
- Year: 2025
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3022345)
- 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)

S3 is a popular protocol for object storage, in use at CERN since 2018. CERN's Ceph S3 service provides a disk storage back-end for various use cases including backup. In principle it is possible to archive S3 objects to tape using the S3 GLACIER storage class extensions. However, this is not yet supported in an open source solution. This talk gives a brief overview of the landscape of support for S3+tape and describes CERN's planned proof-of-concept for an open source S3+tape implementation using CTA..

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## Lectures

1. [Cold storage using S3+GLACIER+CTA](https://invisiblenetwork.ai/learn/cern/3022345/92830c30dc8a), 16 min (CERN's player)