I'm thinking about using this and have a few questions:

    1. How are hardlinks and duplicate files (same content, different paths) handled?
    2. Does deduplication work on a block/chunk level for partially matching files, or does it only look at whole files?
    3. Is there any specific integration or handling for Copy-on-Write (CoW)?

Thank you!

I was investigating the design a little. Two big questions:

A) You notably don't write a recovery log (WAL/journal) for things not yet flushed, so data can be lost. Do you have plans to add this? I think it would be pretty crucial.

B) the system is single writer. Do you have plans for adding horizontal scalability so a writer can be dynamically selected and routed to, transparent to the client? (Or with client cooperation, but without forcing sharding on the user)

Thanks for building this, I am just about to give it ago with my self-hosted Garage cluster.

Does running `stat` against a file require pulling the whole file from s3, or can that be handled by the metadata?

Do you know what backup performance is like for something like borg/borgmatic or restic, especially on follow up runs where most files are just checked.

Is there any particular Redis/Valkey config you recommend when using it for `conditional_put`, or just default config?

Is there any chance for NFSv4 support?

This blog post seems to have been written by an AI based on a prompt you gave it? Can you confirm or deny this?

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That’s a fair concern. The closest thing right now is a deterministic simulation suite that injects storage faults and crashes at arbitrary points, then checks the recovered data against reference models. It runs hourly with fresh seeds.

CI also runs pjdfstest, xfstests, stress-ng, ZFS scrubs, and Jepsen crash/failover tests: https://github.com/Barre/ZeroFS#testing

ZeroFS is still pretty young as storage projects go, so I completely understand wanting to see it prove itself over time.

The page appears to be dark themed even without dark mode enabled; if I use Noir to force-add dark mode, then the diagrams indeed become difficult to read but this seems like a Noir issue more than a site issue

I have the same in Brave on iOS: to see the the diagrams I need to turn of Night Mode.

I only saw one diagram but it is perfectly visible for me on the desktop.

Their bandwidth costs are overpriced yes but in terms of storage you are paying for RAID3 replicated across three data centers (configurable) and high availability. The engineering behind it is also formally verified with strict theoretical bounds on data loss. $48*3 = ~$150 is within the same ballpark if you factor in the managed services and cloud overhead.