# bcachefs Hacker Approved page: https://hackerapproved.com/p/bcachefs/ 20 people recommended bcachefs in Hacker News comments, 6 had mixed feelings and 12 criticized it, November 2025 to October 2026. It was recommended in 8 of 12 months, in 11 threads. It does not meet the Hacker Approved badge rule. 13 of the 20 people who recommend it commented in one thread, “Btrfs/ZFS/bcachefs under workloads classic benchmarks skip”. **Verdict:** People recommend it for mixing drive sizes and types, per-file replication, strong performance, and outperforming Btrfs and ZFS. Common caveat: it was removed from the mainline Linux kernel and many feel it needs more years to mature. Summary written by Claude from 52 comments. It was written before the November 2026 recount, and 51 of those comments still count. ## Why people recommend it - Working well for daily use (6 comments in the sample): "Haven't had any issues on a simple mirrored array, which I've been running since before it was in (and out) of the kernel." ([source](https://news.ycombinator.com/item?id=46268429)) "I switched my pools to it from ZFS last year and it is working swimmingly." ([source](https://news.ycombinator.com/item?id=50286682)) "actual users seem happy and my life is far better" ([source](https://news.ycombinator.com/item?id=49785883)) - Outperforms Btrfs and other filesystems (3 comments in the sample): "bcachefs has been doing quite a bit better than other filesystems have /after/ they've dropped the experimental level." ([source](https://news.ycombinator.com/item?id=46953305)) "I'm pretty sure Bcachefs is amazing and better than Btrfs." ([source](https://news.ycombinator.com/item?id=49769757)) "which is just way more stable and performant than btrfs" ([source](https://news.ycombinator.com/item?id=49776932)) - Mixes devices and per-file replication (2 comments in the sample): "mixing different device tiers and having a per-file/directory replication setting is a god send" ([source](https://news.ycombinator.com/item?id=49769508)) "You can mix devices of different sizes and types on bcachefs." ([source](https://news.ycombinator.com/item?id=49769750)) - Active community and support (2 comments in the sample): "Community's still growing, though. A lot of people have gotten active in making sure bcachefs actually works well for people end to end" ([source](https://news.ycombinator.com/item?id=49769999)) "bcachefs on Arch is a bit better supported, we have the distro package maintainer in the bcachefs IRC channel" ([source](https://news.ycombinator.com/item?id=49770529)) ## What people warn about - Removed from mainline kernel (6 comments in the sample): "the removal from the mainline kernel has seriously undermined its credibility for use within a company environment" ([source](https://news.ycombinator.com/item?id=46951987)) "That factor went away with BcacheFS choosing to not get mainlined into Linux Kernel." ([source](https://news.ycombinator.com/item?id=50301287)) "the developer has sabotaged the project into being removed from mainline" ([source](https://news.ycombinator.com/item?id=49769249)) - Reliability and trust concerns (3 comments in the sample): "I've had both btrfs and bcachefs multidevice filesystems lock up read-only on me." ([source](https://news.ycombinator.com/item?id=47659919)) "it just can't be trusted at the moment" ([source](https://news.ycombinator.com/item?id=46268459)) "a questionable history of reliability" ([source](https://news.ycombinator.com/item?id=49769504)) - Needs more years to mature (2 comments in the sample): "it simply needs to have a few more years under its belt before I'll be comfortable with it" ([source](https://news.ycombinator.com/item?id=50180569)) "Isn't bcachefs even younger and less polished than btrfs?" ([source](https://news.ycombinator.com/item?id=47659501)) - Development setbacks and stalled progress (2 comments in the sample): "bcachefs just hit a setback, which i am hopeful will eventually be resolved" ([source](https://news.ycombinator.com/item?id=49772417)) "bcachefs came and… appears to have gone nowhere AFAICT" ([source](https://news.ycombinator.com/item?id=47403591)) ## Other filesystems people recommend - [ZFS](https://hackerapproved.com/p/zfs/): 239 recommend, 34 mixed, 49 criticize - [Btrfs](https://hackerapproved.com/p/btrfs/): 63 recommend, 31 mixed, 79 criticize - [ext4](https://hackerapproved.com/p/ext4/): 27 recommend, 3 mixed, 4 criticize - [XFS](https://hackerapproved.com/p/xfs/): 16 recommend, 3 mixed, 9 criticize ## The badge A product earns the Hacker Approved badge when at least 10 people recommend it, recommenders outnumber critics at least 2 to 1 (mixed feelings count toward neither side), it was recommended in at least 4 of the 12 months and in at least 5 different threads, and no single thread supplies more than half of the people who recommend it. Health and money products are never badged. ## Cite as Hacker Approved, "bcachefs", https://hackerapproved.com/p/bcachefs/ (20 recommend, 6 mixed, 12 criticize; Hacker News comments, November 2025 to October 2026). Counts updated 3 Nov 2026, with data through October 31, 2026.