Re: Transparent compression with XFS - especially with zstd

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On 19.01.2025 22:07, Carlos E. R. wrote:
On 2025-01-19 13:16, Gerhard Wiesinger wrote:
Hello,

Are there any plans to include transparent compression with XFS (especially with zstd)?

I am also curious about this, seeing that btrfs has compression.

Hello Carlos,

Unfortunately, BTRFS is to my expererience not stable and some very lightly inconsistences (e.g. hardware, software failures) can lead to my experience to a "forever" corrupt filesystems and a non repareable filesystem. Also devs on the BTRFS mailinglist couldn't help. You can run filesystem repair tools "forever" without any success.

Also BTRFS doesn't compress in some scenarios and is therefore not useable. No solution to this architectural flaw/bug can be offered from the BTRFS devs. See here for details: https://lore.kernel.org/all/b7995589-35a4-4595-baea-1dcdf1011d68@xxxxxxxxxxxxx/T/

Therefore BRFS is unfortunately not an option to choose from.

Tried also bcachefs but it is not ready for production use and is still experimental.

ZFS is so far ok, but it requires special kernel and ZFS version requirements and is not a general purpose solution.

Due to the lack of a compressing stable filesystem which is included in the standard kernel I'm asking to include compression into a stable filesystem like XFS.

Thnx.

Ciao,

Gerhard





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