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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. Here's a good summary with some performance charts: https://github.com/openzfs/zfs/pull/10278
    comment by efxhoy · 2021-02-07 · in FreeBSD 13.0 Beta1 Now Available
  2. https://github.com/openzfs/zfs/releases/tag/zfs-2.0.0
    comment by ac29 · 2021-02-07 · in FreeBSD 13.0 Beta1 Now Available
  3. …way zstd handles zfs block sizes. Thankfully lz4 works great for zfs and has for many years now. https://github.com/openzfs/zfs/blob/master/include/sys/zio.h...
    comment by tal8d · 2021-01-28 · in LZ4 – Extremely fast compression
  4. …under development for raidz expansion. (Raidz is like raid5/6). The work on the alpha is up at: https://github.com/openzfs/zfs/pull/8853
    comment by craftkiller · 2021-01-03 · in The Perfect Media Server
  5. Indeed, it's CDDL: https://github.com/openzfs/zfs/blob/master/LICENSE
    comment by oarsinsync · 2021-01-03 · in The Perfect Media Server
  6. …both ZFS and BTRFS at about the same rate. A public example of an apparent ZFS performance issue is https://github.com/openzfs/zfs/issues/9375 Both are much more quirky than simpler filesystems like ext4. Data integrity verification from…
    comment by jpeloquin · 2020-12-23 · in Linux 5.10 BTRFS performance regression
  7. …doesn't, but also their changelogs aren't seen by people who browse Linux changelogs. You'd look at https://github.com/openzfs/zfs/releases (which also contains a few bug fixes) if you're interested in zfs. Btrfs has quite a few more…
    comment by viraptor · 2020-12-23 · in Linux 5.10 BTRFS performance regression
  8. …the most optimized point for anyone without an actual preference between speed and compression. 1 https://github.com/openzfs/zfs/pull/10278
    comment by foolmeonce · 2020-12-17 · in Zstandard v1.4.7
  9. Redacted zfs send/receive in OpenZFS 2.0 might be interesting to you: https://github.com/openzfs/zfs/pull/7958
    comment by EvanAnderson · 2020-12-09 · in ZFS: Use mirror vdevs, not RAIDZ
  10. …Therefore a scrub is automatically started when the last active sequential resilver completes. * https://github.com/openzfs/zfs/pull/10349
    comment by throw0101a · 2020-12-09 · in ZFS: Use mirror vdevs, not RAIDZ
  11. > today was the day when a CentOS 8 kernel update broke ZFS This issue? https://github.com/openzfs/zfs/issues/11307
  12. …on illumos, if I read correctly) implies that this might have been true at one point, but indeed https://github.com/openzfs/zfs doesn't seem to do its own NFS so it's not true now if it ever was. Thanks for correcting my understanding.
    comment by yjftsjthsd-h · 2020-12-01 · in OpenZFS 2.0
  13. ▲ 364
    OpenZFS 2.0
    story by ascom · 2020-11-30 · 148 comments
  14. …The ZFS devs don't like to push unstable features, so I expect we're still quite a way off. [1]: https://github.com/openzfs/zfs/pull/8853
    comment by magicalhippo · 2020-11-20 · in An Introduction to ZFS
  15. …for expanding one drive at a time. If you're adding 20 disks in one go, do it as a new VDEV. [1]: https://github.com/openzfs/zfs/pull/8853
    comment by magicalhippo · 2020-11-20 · in An Introduction to ZFS
  16. …on the read path). But yeah, ZFS is not super flexible for adding and removing random drives. [1]: https://github.com/openzfs/zfs/pull/8853
    comment by MarkSweep · 2020-11-20 · in An Introduction to ZFS
  17. …will be available [1]. Anyone has any more insights if there is an ETA for this feature? [1] - https://github.com/openzfs/zfs/pull/8853
    comment by _ink_ · 2020-11-20 · in An Introduction to ZFS
  18. ▲ 2
    ZFS v0.8.5 Released
    story by turrini · 2020-10-08 · 0 comments
  19. ▲ 1
    OpenZFS 2.0.0-Rc1 Released
    story by ashitlerferad · 2020-08-26 · 0 comments
  20. …to impossibility of CoW optimizing. Anyway lack of O_DIRECT is not important for some use cases. https://github.com/openzfs/zfs/pull/10018 For defrag, ZFS developers avoid to implement "block pointer rewrite" feature that's needed for…
    comment by fomine3 · 2020-08-26 · in OpenZFS Merged to FreeBSD
  21. ▲ 10
    OpenZFS 2.0.0-Rc1
    story by ivzhh · 2020-08-25 · 1 comment
  22. I think it's happening soon! Been watching this for a while too... https://github.com/openzfs/zfs/pull/8853
    comment by kylegordon · 2020-08-25 · in OpenZFS Merged to FreeBSD
  23. * https://github.com/openzfs/zfs/issues/8885 This seems to be more of a udev and 'device' discovery problem than something inherit to ZFS/ZoL.
    comment by throw0101a · 2020-08-25 · in Btrfs Coming to Fedora 33
  24. ▲ 9
    OpenZFS finally integrates Zstandard transparent compression
    story by telendram · 2020-08-20 · 0 comments
  25. RAID-Z expansion is being worked on: https://github.com/openzfs/zfs/pull/8853 Last I checked BTRFS RAID5/6 was a dumpster fire and unusable in production. Have they actually open sourced the ability to fix bitrot detection with mdraid? If…
  26. …somewhat mitigate the poor integration of ZFS ARC cache and page cache which are documented here: https://github.com/openzfs/zfs/issues/225 and https://lists.freebsd.org/pipermail/freebsd-hackers/2016-Jul... there was also a whole wiki on…
  27. …to "remove references to slavery"[2]. [1] https://news.ycombinator.com/item?id=23484466 [2] https://github.com/openzfs/zfs/pull/10435
  28. …about horrible American's history. If they want to go all PC, what about use of word "kill"[1]? [1] https://github.com/openzfs/zfs/search?q=kill&unscoped_q=kill
    comment by takeda · 2020-06-14 · in ZFS Removes References to Slavery
  29. ▲ 55
    ZFS Removes References to Slavery
    story by turrini · 2020-06-14 · 126 comments
  30. …for OSS. If things go that way I hope some good open standards can get out ahead of it. ---- 1: https://github.com/openzfs/zfs/issues/8381
  31. ▲ 2
    OpenZFS patch for removing references to slavery
    story by asadhaider · 2020-06-11 · 2 comments
  32. …adding support for traditional sequential rebuild way like Linux MD that suitable for SMR disks. https://github.com/openzfs/zfs/pull/10349
  33. …they mention exact serial numbers I see in this article. [WD WDx0EFAX drive unable to resilver]( https://github.com/openzfs/zfs/issues/10214 )
  34. ZFS RAIDZ expansion is in development here. https://github.com/openzfs/zfs/pull/8853
    comment by fomine3 · 2020-05-25 · in Don’t Be Afraid of RAID
  35. ▲ 164
    Introduce ZSTD compression to ZFS
    story by c0d3z3r0 · 2020-05-17 · 38 comments
  36. ▲ 1
    ZFS v0.8.4 Released
    story by turrini · 2020-05-13 · 0 comments
  37. There've been lots of detailed reports about rebuilds not succeeding. For example: https://github.com/openzfs/zfs/issues/10214
  38. …metadata devices[1] seems to be close to what you'd need for it to become SMR-capable. [1]: https://github.com/openzfs/zfs/pull/5182
    comment by magicalhippo · 2020-04-22 · in On WD Red NAS Drives
  39. ▲ 1
    Improve ZVOL sync write performance by using a taskq · openzfs/ZFS 0929c4d
    story by protomyth · 2020-04-21 · 0 comments
  40. It seems like a rotational disk that supports TRIM is SMR but not all SMR disks support TRIM[0]. [0] https://github.com/openzfs/zfs/issues/10182
  41. See https://github.com/openzfs/zfs/issues/8259 for details. While they didn't remove it to sabotage ZFS, they don't seem to care about it ruining ZFS performance on Linux. Of course they have no obligation to make ZFS on Linux users happy,…
  42. …the devil I know. (I'm presently updating my script to follow the most recent instructions at https://github.com/openzfs/zfs/wiki/Debian-Buster-Root-on-ZF... ) ZFS-installer appears to be more mature and is seeing more effort than mine.…
  43. https://github.com/openzfs/zfs/commit/b52563034230b35f0562b6... "The last addition is the ability to do raw, encrypted sends and receives. The idea here is to send raw encrypted and compressed data and receive it exactly as is on a backup…
    comment by RJIb8RBYxzAMX9u · 2020-03-10 · in Sanoid – Replication and Backups with ZFS
  44. ▲ 37
    ZFS on Linux repo renamed to openzfs/ZFS
    story by 0mp · 2020-02-25 · 10 comments
  45. https://github.com/zfsonlinux/zfs/pull/9582
  46. Also, the work-in-progress (alpha quality) preview code: https://github.com/zfsonlinux/zfs/pull/8853
  47. There's ongoing work on this PR: https://github.com/zfsonlinux/zfs/pull/8853
  48. ▲ 3
    ZFS on Linux – ZFS 0.8.3 Released
    story by rubyn00bie · 2020-01-28 · 1 comment
  49. …But there was a Linux-specific data loss bug with ZFS in 2018: https://github.com/zfsonlinux/zfs/issues/7401 Of course you should use what you like. And I agree that ZFS is safer. But again, I don't know of any file syste
    comment by _jal · 2020-01-27 · in Five Years of Btrfs
  50. ▲ 1
    ZFS v0.8.3 Released
    story by turrini · 2020-01-26 · 0 comments