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OpenZFS on Linux and FreeBSD

423 mentions on Hacker News by 226 people: 73 stories, 350 comments · first 2013-03-29 · latest 2026-10-12

Mentions per year 423 mentions · busiest year 2023 (86)
20082026
  1. ▲ 1
    ZFS Sync Parallelism
    story by g0xA52A2A · 2023-11-07 · 0 comments
  2. https://github.com/openzfs/zfs/issues/260 I stand corrected, last time I checked they didn't support freeze/unthaw on ZoL, it's always worked on FreeBSD though.
    comment by carlhjerpe · 2023-11-01 · in Bcachefs Merged into the Linux 6.7 Kernel
  3. …is required. The list of open issues on GitHub in the native encryption component is quite telling: https://github.com/openzfs/zfs/issues?q=is%3Aopen+is%3Aissue...
  4. …zvol. So you would need a non-zfs managed partition/device for swap. Not sure about current status? https://github.com/openzfs/zfs/issues/7734 https://github.com/openzfs/zfs/issues/342 https://utcc.utoronto.ca/~cks/space/blog/solaris/ZFSFor…
  5. …and clones when a replica of the data already exists in the form of a backup send stream. * https://github.com/openzfs/zfs/releases/tag/zfs-2.2.0 * https://github.com/openzfs/zfs/pull/9372
  6. There's https://github.com/openzfs/zfs/tree/master/contrib/pyzfs , which is as official as it gets.
  7. Nah, the PR for that is still being reviewed prior to getting merged: https://github.com/openzfs/zfs/pull/15022
  8. It's been a good week! https://github.com/openzfs/zfs/releases/tag/zfs-2.2.0
  9. …going on. If they can get it working it seemed to give a decent boost for certain scenarios. [1]: https://github.com/openzfs/zfs/pull/13148 [2]: https://github.com/openzfs/zfs/issues/15351
  10. …[2]: https://people.freebsd.org/~gibbs/zfs_doxygenation/html/d9/d... [3]: https://github.com/openzfs/zfs/blob/c0e58995e33479a9c1d97fb2... [4]: https://github.com/openzfs/zfs/blob/c0e58995e33479a9c1d97fb2...
  11. …and clones when a replica of the data already exists in the form of a backup send stream. [0] https://github.com/openzfs/zfs/pull/9372
  12. …While block cloning isn't supported for encrypted datasets yet, looks like there is a WIP already: https://github.com/openzfs/zfs/pull/14705 Very cool to have the ability for near instant cp or mv between datasets or snapshot (at least…
  13. ▲ 105
    OpenZFS 2.2: Block Cloning, Linux Containers, BLAKE3
    story by buybackoff · 2023-10-13 · 64 comments
  14. ▲ 2
    OpenZFS 2.1.13
    story by chungy · 2023-09-28 · 0 comments
  15. …and test, always test . [0] https://openzfs.github.io/openzfs-docs/Project%20and%20Commu... [1] https://github.com/openzfs/zfs/pull/4523/commits/73abf3a8634...
    comment by tomxor · 2023-09-06 · in ZFS for Dummies
  16. …(looks weird, but this is a legit web front end for the mailing list) and the github issues: https://github.com/openzfs/zfs/issues
    comment by Modified3019 · 2023-09-05 · in ZFS for Dummies
  17. ▲ 2
    Implementing Raid Expansion in ZFS
    story by psxuaw · 2023-08-29 · 1 comment
  18. …some current work to add a disk to existing vdevs, and I think even a semi-working PR for it now: https://github.com/openzfs/zfs/pull/15022 . Hopefully in theory that will make ZFS a little less frustrating.
    comment by tombert · 2023-08-23 · in Zrepl – ZFS replication
  19. …data between them isn't instant. No more the case after block cloning support goes production: https://github.com/openzfs/zfs/pull/13392
    comment by philkrylov · 2023-08-23 · in I only lost 10 minutes of data, thanks to ZFS
  20. Beware using ZFS with external disks: https://github.com/openzfs/zfs/issues/3461
    comment by yencabulator · 2023-08-21 · in OpenZFS – add disks to existing RAIDZ
  21. …FreeNAS/TrueNAS) is sponsoring this work now. This PR supersedes ones that was opened back in 2021 https://github.com/openzfs/zfs/pull/12225#issuecomment-16101...
    comment by eminence32 · 2023-08-19 · in OpenZFS – add disks to existing RAIDZ
  22. ▲ 244
    OpenZFS – add disks to existing RAIDZ
    story by shrubble · 2023-08-19 · 175 comments
  23. …known performance issues that were improved greatly in the latest openzfs release. If you read https://github.com/openzfs/zfs/issues/11407 It should be in there somewhere. Dataset plus raw file will almost always be faster though due to…
    comment by DannyBee · 2023-08-18 · in FreeBSD Bhyve Virtualization
  24. ▲ 6
    ZFS raidz expansion is coming
    story by Just1689 · 2023-08-07 · 3 comments
  25. …partition. [0] even setting the myriad of options there still exist reports about hangs, like https://github.com/openzfs/zfs/issues/7734#issuecomment-4167...
    comment by tlamponi · 2023-07-05 · in ZFS 2.2.0 (RC): Block Cloning merged
  26. …support for ZFS and native encryption uses a hacky intermediate key under LUKS, but it works. [0] https://github.com/openzfs/zfs/issues/12014 [1] https://github.com/openzfs/zfs/issues/12594 [2] https://serverfault.com/questions/265779/split…
    comment by benlivengood · 2023-07-04 · in ZFS 2.2.0 (RC): Block Cloning merged
  27. …code for that specific purpose, so I might have missed functionality that would provide this. [1] - https://github.com/openzfs/zfs/issues/10255#issuecomment-620...
    comment by rincebrain · 2023-07-04 · in ZFS 2.2.0 (RC): Block Cloning merged
  28. > I am looking forward to the Direct IO speed improvements for NVMe drives with https://github.com/openzfs/zfs/pull/10018 See also "Scaling ZFS for NVMe" by Allan Jude at EuroBSDcon 2022: * https://www.youtube.com/watch?v=v8sl8gj9UnA
    comment by throw0101c · 2023-07-04 · in ZFS 2.2.0 (RC): Block Cloning merged
  29. …well, easy to setup. I am looking forward to the Direct IO speed improvements for NVMe drives with https://github.com/openzfs/zfs/pull/10018 edit: one thing I forgot to mention is, when creating your pool make sure to import your drives by…
    comment by noaheverett · 2023-07-04 · in ZFS 2.2.0 (RC): Block Cloning merged
  30. Also see this issue: https://github.com/openzfs/zfs/issues/405 > It is in FreeBSD main branch now, but disabled by default just to be safe till after 14.0 released, where it will be included. Can be enabled with loader tunable there. >…
    comment by albertzeyer · 2023-07-04 · in ZFS 2.2.0 (RC): Block Cloning merged
  31. ▲ 286
    ZFS 2.2.0 (RC): Block Cloning merged
    story by turrini · 2023-07-04 · 165 comments
  32. ▲ 4
    iXsystems is sponsoring stalled ZFS VDEV Expansion feature
    story by louwrentius · 2023-06-28 · 0 comments
  33. The zero cost abstraction remarks remind me of this code that I recently wrote: https://github.com/openzfs/zfs/commit/677c6f8457943fe5b56d7a... In order to make that fast, I did C++-style generics and inlining in C via the CPP. However, it…
    comment by ryao · 2023-05-30 · in Why I'm Done with Rust
  34. …made significant changes to some relevant APIs -- I noticed OpenZFS is not released for 6.3 yet. https://github.com/openzfs/zfs/issues/14622
  35. …but this is not what I expected: https://github.com/ellie/atuin/issues/952#issuecomment-15378... https://github.com/openzfs/zfs/issues/14290 Apparently when SQLite calls `ftruncate` on the `-shm` file, ZFS will sometimes block for several…
  36. > For double or triple parity, we use a special case of Reed-Solomon coding https://github.com/openzfs/zfs/blob/zfs-2.1-release/module/z...
  37. …You don't like it? You prioritize reflinks (ZFS just merged block cloning BTW, so hello reflinks: https://github.com/openzfs/zfs/pull/13392 ) or offline dedup over RAIDZ? Fine. But make sure your favorite filesystem (or your new…
    comment by mustache_kimono · 2023-05-12 · in Bcachefs – A New COW Filesystem
  38. https://github.com/openzfs/zfs/issues/10516 The data goes through two caches instead of just page cache or just arc as far as I understand it.
    comment by viraptor · 2023-05-11 · in Bcachefs – A New COW Filesystem
  39. …issues, I was likely thinking of 6.2.8 breaking it, where 6.2.7 was fine. Point stands, though. https://github.com/openzfs/zfs/issues/14658 Regarding 6.3 support, it apparently is merged in the master branch, but no release as of yet.…
    comment by vladvasiliu · 2023-05-11 · in Bcachefs – A New COW Filesystem
  40. The author has refactored their branch with guidance and promoted their draft pr to open last month. https://github.com/openzfs/zfs/pull/14034
    comment by infogulch · 2023-04-22 · in Windows on Btrfs
  41. There is the same (and ignored) problem in OpenZFS: https://github.com/openzfs/zfs/issues/14762 Please vote there.
  42. …of whether and how big of an issue this is, from what I understand OpenZFS uses the same KDF: https://github.com/openzfs/zfs/issues/10764 Gladly correct me in case I'm wrong.
    comment by the-anarchist · 2023-04-18 · in PSA: Upgrade your LUKS key derivation function
  43. …the commit (as in [0]). [0]: https://lore.kernel.org/all/20221107170747.276910-1-broonie@... [1]: https://github.com/openzfs/zfs/issues/14555
    comment by imrehg · 2023-03-26 · in When root on ZFS breaks on Arch Linux
  44. I think you are referring to RAIDZ expansion, which isn't merged yet? https://github.com/openzfs/zfs/pull/12225
  45. …give the compiler ways of optimizing C, it is not very good at generating good vector code: https://github.com/openzfs/zfs/pull/14234#issuecomment-13345... A bug report has been filed with GCC for one of the issues. LLVM is much better…
  46. ▲ 10
    OpenZFS 2.1.7 Released
    story by chungy · 2022-12-02 · 1 comment
  47. You may be interested in recent (~the last month) developments in adding Windows support to OpenZFS: https://github.com/openzfs/zfs/pull/14034
  48. …that had to be worked around when the kernel team labelled those functions as GPL only. See: https://github.com/openzfs/zfs/issues/13042
  49. …loader) Note: This issue was specific to our use case and may not apply to all use cases... [1] https://github.com/openzfs/zfs/issues/12813 [2] https://zfsonlinux.topicbox.com/groups/zfs-discuss/T5122ffd3... [3]…
  50. …running something based on 2.1 and still finding you can run it fuller more reasonably. [1] - https://github.com/openzfs/zfs/commit/aa755b35493a2d27dbbc59...
    comment by rincebrain · 2022-10-24 · in Maintaining sufficient free space with ZFS