MergerFS – A Featureful Union Filesystem

In plain words

MergerFS is a union filesystem that combines multiple directories or storage devices into a single unified view. It lets users pool storage from different sources without migrating data, making it useful for managing large media libraries, expanding storage capacity, or organizing files across multiple drives. The software is designed for system administrators and advanced users comfortable with command-line tools who need flexible storage management solutions.

written from the facts on this page · September 2026

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