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The next great linux filesystem is preparing to merge with upstream (bcachefs)

https://lwn.net/SubscriberLink/934692/5046d466490d9220

Follower of Christ :marseyandjesus: Tech lover, IT Admin, heckin pupper lover and occasionally troll. I hold back feelings or opinions, right or wrong because I dislike conflict.

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>Copy on write (COW) - like zfs or btrfs
>Full data and metadata checksumming
>Multiple devices
>Replication
>Erasure coding (only feature not quite stable)
>Caching
>Compression
>Encryption
>Snapshots
>Scalable - has been tested to 50+ TB, will eventually scale far higher
>Already working and stable, with a small community of users

Am I the only one who thinks most of this shit doesn't belong on a filesystem? Read/write the data as fast as possible, and make sure it stays there until it's deleted. That's essentially all a filesystem should do.

Compression doesn't belong on a filesystem. Not everything needs compressing and makes simple stuff like checking remaining space difficult.

Encryption you do via LUKS and doesn't need to be a filesystem thing.

CoW and snapshots should not be filesystem level and fricks around further with remaining disk space.

Multiple devices you can either use mdadm or LVM. Why reinvent it and put it on the filesystem?

etc etc

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surely a lot of that stuff can be more efficient reliable etc if its hidden from the user in the autism part of the operating system

if youre a homelab cuck or whatever then fine but who wants to manually set up CoW in userspace? how would that even work

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I don’t think I need to argue for it explicitly when zfs is the best example possible.


Follower of Christ :marseyandjesus: Tech lover, IT Admin, heckin pupper lover and occasionally troll. I hold back feelings or opinions, right or wrong because I dislike conflict.

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Nilfs is peak filesystem, simple fast , no feature bloat

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