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What's with all these hip filesystems and how are they different?
(lm.paradisus.day)
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this post was submitted on 07 Dec 2023
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Kinda. You can copy your snapshots from @home too, meaning a restore from backup also restores your local file version history. There are also tools to push snapshots around as a large archive instead of dealing with smaller files directly.
The COW can also reduce the chances of running rsync on a large file that is currently being accessed, and getting a partial file in your backup. Or I suck at rsync 🤷♂️
You're right, atomic snapshots are a big advantage of CoW fs.
Rsync backups done while the system is running have a chance of being broken, while CoW fs snapshots are instant and seem basically as if the system suddenly lost power.