50 years in filesystems (froscon2025)

What this episode covers

Writing data to disk, how hard can it be? File systems are a special topic, because when you make a mistake, somebody is losing data and rollback ain't gonna fix it. We have had innovations in filesystems roughly in intervals of a decade for the last 50 years. What have we learned, what has changed due to changes in technology, and where are we now? A tour of the V7 Unix file system, BSD FFS, SGI XFS, LFS and ZFS, and some remarks on modern environments. A technical tour of how we store data in Unix. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://programm.froscon.org/2025/events/3238.html

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This episode is 1 hour and 3 minutes long.

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This episode was published on August 16, 2025.

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Writing data to disk, how hard can it be? File systems are a special topic, because when you make a mistake, somebody is losing data and rollback ain't gonna fix it. We have had innovations in filesystems roughly in intervals of a decade for the...

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