# Unlocking SMR Capacity in EOS Using Zoned XFS

- Institution: CERN
- Speaker: Hans Holmberg
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3023534)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

\[Recent developments in XFS\]\[1\] have introduced native support for zoned storage devices such as Shingled Magnetic Recording (SMR) drives, offering a robust and higher‑performance alternative to BTRFS for this class of hardware. With Zoned XFS EOS can now efficiently leverage the additional 20–25% storage capacity provided by SMR HDDs.

This presentation will give an overview of the architectural changes made to XFS to support zoned storage, demonstrate its performance characteristics, and provide a practical, hands‑on guide for setting up, using and tuning XFS file systems on SMR HDDs.

\[1\]: https://dl.acm.org/doi/10.1145/3725783.3764399

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## Lectures

1. [Unlocking SMR Capacity in EOS Using Zoned XFS](https://invisiblenetwork.ai/learn/cern/3023534/eb3ba445ef57), 23 min (CERN's player)