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Benefit of a subvolume below the top level btrfs subvolume?
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this post was submitted on 13 Jun 2024
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Not a specialist, but I suppose it has to do with having different configurations for different top level folder. In Unix-like systems, every top level folder have a different purpose, and what works for the root may not for /tmp, /swap, etc.
In those example, no need to snapshot /tmp, as it is a forder whose file are bound to be deleted, and for which being able to restore has no use.
/swap is pretty similar ~~, and is often formated with a dedicated filesystem.~~
/usr often only change during the package manager transactions, so snapshots are often tied to that, while /home may be set to keep daily snapshots.