openzfs/zfs on Hacker News

…releases because kernel-internal symbols are not fully stable (unless I've seriously misunderstood https://github.com/openzfs/zfs/issues/11320 ). And since Stream is a rolling release, users will therefore experience breakage unless they…

comment by yjftsjthsd-h · 2021-11-02 · in Fedora 35

…you the real MVP. P.S. For those interested, the issue[1] is NVMe performance for OpenZFS[2] [1] https://github.com/openzfs/zfs/issues/8381 [2] https://twitter.com/OpenZFS/status/1452762896769953795

comment by noaheverett · 2021-10-26 · in GitHub stale bot considered harmful

Last I looked, ZFS didn't support reflinks. https://github.com/openzfs/zfs/issues/405

comment by yencabulator · 2021-10-04 · in Podman in Linux

…usage bug) is real and in 0.7+ so far as I can tell. Ideally both would have been committed. [0]: https://github.com/openzfs/zfs/pull/6544

comment by ComputerGuru · 2021-09-06 · in ZFS is mysteriously eating my CPU

Actual issue here: https://github.com/openzfs/zfs/issues/6531 It seems the whole thing took place in 2017 and was fixed then (first by not calling the reclaim if used ARC memory was zero, then the root cause also fixed by using a PRNG…

comment by ComputerGuru · 2021-09-06 · in ZFS is mysteriously eating my CPU

https://github.com/openzfs/zfs/issues/7734

comment by nwmcsween · 2021-06-19 · in ZFS fans, rejoice – RAIDz expansion will be a thing soon

…will for the first time allow us to avoid building a completely new pool). [edit] The PR is here: https://github.com/openzfs/zfs/pull/12225 I also recommend reading the discussions in the ZFS repository - they are quite interesting and…

comment by uniqueuid · 2021-06-18 · in ZFS fans, rejoice – RAIDz expansion will be a thing soon

…deters me as a home user. ZFS has been working on developing raidz expansion for a while now at https://github.com/openzfs/zfs/pull/8853 but I feel that it's a one-man task with no support from the overall project due to that prevailing…

comment by kylegordon · 2021-04-30 · in QNAP ships NAS backup software with hidden credentials

…is part of it. See for example the zraid_test tool[2], which seems to do what you suggest. [1]: https://github.com/openzfs/zfs/tree/master/tests/zfs-tests [2]: https://github.com/openzfs/zfs/tree/master/cmd/raidz_test (run_rec_check_impl…

comment by magicalhippo · 2021-04-22 · in Btrfs on Zoned Block Devices

…to AWS. Practically you need to add the -w or --raw flag to zfs send to make it do this. [0] https://github.com/openzfs/zfs/releases/tag/zfs-0.8.0

comment by agurk · 2021-03-23 · in Z3 – ZFS to S3 Backup/Restore Tool

Is this feature related to the proposed RAID-Z expansion? https://github.com/openzfs/zfs/pull/8853 It's mentioned in the pull request comments. Maybe it will help?

comment by matheusmoreira · 2021-02-18 · in OpenZFS – dRAID, Finally

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

https://github.com/openzfs/zfs/releases/tag/zfs-2.0.0

comment by ac29 · 2021-02-07 · in FreeBSD 13.0 Beta1 Now Available

…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

…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

Indeed, it's CDDL: https://github.com/openzfs/zfs/blob/master/LICENSE

comment by oarsinsync · 2021-01-03 · in The Perfect Media Server

…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

…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

…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

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

…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

> today was the day when a CentOS 8 kernel update broke ZFS This issue? https://github.com/openzfs/zfs/issues/11307

comment by bsg75 · 2020-12-08 · in CentOS Project shifts focus to CentOS Stream

…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

…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

…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

…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

…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

…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

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

* 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

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…

comment by tw04 · 2020-07-20 · in In Praise of ZFS on Linux's ZED 'ZFS Event Daemon'

…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…

comment by jaekash · 2020-07-13 · in Tutorial sites treating FreeBSD like a Linux distro

…to "remove references to slavery"[2]. [1] https://news.ycombinator.com/item?id=23484466 [2] https://github.com/openzfs/zfs/pull/10435

comment by asadhaider · 2020-06-15 · in GitHub abandons 'master' and 'slave' terms to avoid row

…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

…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

comment by xoa · 2020-06-13 · in Storage Matters: Why Xbox and Playstation SSDs Usher in a New Era of Gaming

…adding support for traditional sequential rebuild way like Linux MD that suitable for SMR disks. https://github.com/openzfs/zfs/pull/10349

comment by fomine3 · 2020-06-09 · in Western Digital’s SMR disks won’t work for ZFS, but they’re okay for most NASes

…they mention exact serial numbers I see in this article. [WD WDx0EFAX drive unable to resilver]( https://github.com/openzfs/zfs/issues/10214 )

comment by jve · 2020-05-29 · in Western Digital Lawsuit for Shipping Slower SMR Hard Drives Including WD Red NAS

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

There've been lots of detailed reports about rebuilds not succeeding. For example: https://github.com/openzfs/zfs/issues/10214

comment by kstrauser · 2020-04-24 · in WD Sets the Record Straight: Lists All Drives That Use Slower SMR Tech

…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

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

comment by isatty · 2020-04-15 · in Western Digital admits 2TB-6TB WD Red NAS drives use shingled magnetic recording

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,…

comment by magicalhippo · 2020-04-13 · in Technical reasons to choose FreeBSD over GNU/Linux

…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.…

comment by HankB99 · 2020-03-22 · in Show HN: Zectl – ZFS Boot Environment Manager for Linux

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

https://github.com/zfsonlinux/zfs/pull/9582

comment by close04 · 2020-02-13 · in Persistent L2ARC Might Be Coming to ZFS on Linux

Also, the work-in-progress (alpha quality) preview code: https://github.com/zfsonlinux/zfs/pull/8853

comment by justinclift · 2020-01-30 · in Why ZFS is not good at growing and reshaping pools, or shrinking them

There's ongoing work on this PR: https://github.com/zfsonlinux/zfs/pull/8853

comment by tecleandor · 2020-01-29 · in Why ZFS is not good at growing and reshaping pools, or shrinking them

…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

ZFS (or at least ZoL) doesn't scale well to NVMEs: https://github.com/zfsonlinux/zfs/issues/8381

comment by magicalhippo · 2020-01-10 · in Linus: Don't Use ZFS

…by such arguments. > It doesn't seem to be well-maintained. The last commit is from 3 hours ago: https://github.com/zfsonlinux/zfs/commits/master . They have dozens of commits per month. The last minor release, 0.8, brought significant…

comment by pizza234 · 2020-01-09 · in Linus: Don't Use ZFS