[HN Gopher] OpenZFS 2.0.0
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OpenZFS 2.0.0
Author : ascom
Score : 105 points
Date : 2020-11-30 21:42 UTC (1 hours ago)
(HTM) web link (github.com)
(TXT) w3m dump (github.com)
| throw0101a wrote:
| Sadly dRAID (parity Declustered RAIDz) just missed the cut-off
| for 2.0, but it looks like it will be in 2.1:
|
| * https://openzfs.github.io/openzfs-docs/Basic%20Concepts/dRAI...
|
| * https://www.youtube.com/watch?v=jdXOtEF6Fh0
| voltagex_ wrote:
| Anyone know what version of Ubuntu Server this will land in?
| mholt wrote:
| I'm looking at setting up my first ZFS pool ('zpool'?) in a few
| weeks, on Linux. Will I be using OpenZFS or something else?
| Ubuntu 20.04.
|
| (Sorry if noise; I'm just trying to get an idea of how relevant
| this 2.0 release is to me.)
| iotku wrote:
| > The ZFS on Linux project has been renamed OpenZFS! Both Linux
| and FreeBSD are now supported from the same repository making
| all of the OpenZFS features available on both platforms.
|
| Previously it was called ZFS on Linux, but now ZFS development
| is unified on the "OpenZFS" codebase shared both between Linux
| and FreeBSD as much of the development effort for ZFS in
| general ended up there.
| mholt wrote:
| Ah, I was wondering what happened since I stopped hearing
| about "ZFS on Linux" so now I know what to search for.
| Thanks!
| codetrotter wrote:
| This is huge! And very exciting :D
|
| One thing I am wondering about is this:
|
| > Redacted zfs send/receive - Redacted streams allow users to
| send subsets of their data to a target system. This allows users
| to save space by not replicating unimportant data within a given
| dataset or to selectively exclude sensitive information. #7958
|
| Let's say I have a dataset tank/music-video-project-2020-12 or
| something and it is like 40 GB and I want to send a snapshot of
| it to a remote machine on an unreliable connection. Can I use the
| redacted send/recv functionality to send the dataset in chunks at
| a time and then at the end have perfect copy of it that I can
| then send incremental snapshots to?
| kogir wrote:
| zfs send supports a resume token (-t) to resume interrupted
| streams received with (-s). Just use normal send/receive until
| you have the full stream sent.
| 0xCMP wrote:
| I think it's more if you want to not send scratch or cached
| files you can have it automatically remove it from the snapshot
| being sent
|
| > Redacted send/receive is a three-stage process. First, a
| clone (or clones) is made of the snapshot to be sent to the
| target. In this clone (or clones), all unnecessary or unwanted
| data is removed or modified. This clone is then snapshotted to
| create the "redaction snapshot" (or snapshots).
|
| Think of it like a selective sync in Dropbox or SyncThing at
| the FS level.
| vorpalhex wrote:
| That's a protocol problem, use a protocol such as rsync. You
| don't need to use redacted sends/recvs.
| nix23 wrote:
| +1 for rsync, but with check-summing turned on, i think
| that's acceptable for 40GB.
| hlandau wrote:
| Will OpenZFS on Linux ever be integrated with the Linux page
| cache?
| nix23 wrote:
| No, they have ARC and ARCL2, if you want the traditional thing
| go to NILFS2 or BTRFS or in the future XFS (when they have full
| check-summing).
| mlex wrote:
| Just built a FreeNAS system over the past couple weeks and
| finished doing burn-in tests of my hard drives, wonder if I
| should wait and see how to install OpenZFS 2.0.0 before I create
| my storage config.
| anderspitman wrote:
| I'd love to get rid of my FreeNAS VM and run ZFS directly on my
| Linux desktop, but having to mess with the kernel has kept me
| from attempting it so far. Maybe I'm worrying about nothing.
|
| btrfs seems like the main alternative if you want native kernel
| support, but when I checked a couple years ago there seemed to be
| a lot of concerns about the stability. Is that still the case?
| paulsmal wrote:
| You know Ubuntu support ZFS since 20.04. Experimental, but
| quite stable for me. Just select file system during
| installation process.
| sliken wrote:
| Or say apt install zfs-utils, that's it, not even a reboot.
| paulsmal wrote:
| Oh yeah, right. Installation method if one needs ZFS on
| root.
| Jnr wrote:
| I'm using btrfs and my system still works. :)
| arwineap wrote:
| debian has zfs in the contrib repo since stretch; no manual
| hacking required just have to enable contrib
|
| I switched my freebsd box over to debian about two years ago.
| No complaints so far :)
| nix23 wrote:
| >ZFS directly on my Linux desktop
|
| Use BTRFS trust me it's stable now...well the commands are
| terrible compared to ZFS. All my Server are FreeBSD but on the
| Laptop and on one Workstation i have openSUSE Tumbleweed since
| like 2 years and it works great.
| neolog wrote:
| > the commands are terrible
|
| what does that mean?
| gpanders wrote:
| > well the commands are terrible compared to ZFS
|
| Really? I don't think so, I find btrfs usage extremely
| straightforward and easy to grok. ZFS on the other hand has
| all that confusing lingo about vdevs, etc...
|
| I get that this is subjective but I disagree.
| ariabuckles wrote:
| Both openSUSE and [as of very recently] Fedora use btrfs by
| default, so btrfs support seems pretty stable these days.
|
| (But as others have pointed out, there are options for using
| zfs on linux, too)
| weitzj wrote:
| The easiest way is using t Proxmox installer which has ZFS as a
| filesystem. Underneath it is a Debian 10 installation. Last
| time I tried you could not enable ZFS encryption. I don't know
| what is the case with Openzfs 2.0
|
| Do we have encryption,yet?
| paulsmal wrote:
| Ubuntu 20.10 has an option in installer to use ZFS encryption
| for root partition.
| Ericson2314 wrote:
| ZFS is no extra work with NixOS! You just declare the
| filesystem type like any other in the config and it takes care
| of kernel modules and what-not.
| kbumsik wrote:
| I personally use ZFS on Arch Linux. The DKMS package works
| almost out of the box and I haven't had any troubles. It takes
| a long time (but not too much) to compile though.
|
| Or you can use the latest Ubuntu that is shipped with ZFS.
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