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OpenZFS 2.0

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Re: OpenZFS 2.0

#51

Post by linsomniac »

anderspitman wrote: post #8

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?

I've been running encrypted ZFS on 20.04 on my main workstation since it came out and it's worked great. Wrote up details here, it's a slight hack for encryption, no hack if you don't want crypto. https://linsomniac.gitlab.io/post/2020-04-09-ubuntu-2004-enc...

A friend did a video based on my blog: https://www.youtube.com/watch?v=PILrUcXYwmc

Re: OpenZFS 2.0

#52

Post by rewtraw »

pantalaimon wrote: post #38
Nican wrote: post #31

Earlier quoted context omitted.

dRAID looks really fascinating, but presentation is pretty abstract. Would it allow to add/remove drives from a pool, and allow ZFS to rebalance itself? Would be great for home use, where I have a lot of drives that I collected over the years that are not the same size. EDIT: The more I read into this, it still seems assume that all drives must be of the same size.

You can already do that with btrfs.

You can do that with ZFS too, at least for mirrored sets (i.e. RAID10). It's possible to remove a vdev, and the pool will migrate the data to the remaining vdevs.

Re: OpenZFS 2.0

#54

Post by takeda »

pbronez wrote: post #45
Ericson2314 wrote: post #21

Earlier quoted context omitted.

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.

Sure - after you figure out NixOS lol

Actually no, NixOS is probably easier to use than other Linuxes. It gets more difficult when you need to package something new that it doesn't have, then you have to know the Nix language and how nixpkgs work.

Re: OpenZFS 2.0

#55

Post by raegis »

nix23 wrote: post #14
anderspitman wrote: post #8

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?

>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.

I've used btrfs for years with no problems ever. But, I see weekly reports on the btrfs reddit forum of the type "I was doing btrfs RAIDxyz, and I can't mount read/write" etc., so there do exist people who have issues with it today. If you do RAID on steroids, you might do some research before trying btrfs.

Re: OpenZFS 2.0

#56

Post by ed25519FUUU »

boston_sre87 wrote: post #53

Has there been any progress on the zfs on linux Linus disagreement front since this article? https://arstechnica.com/gadgets/2020/01/linus-torvalds-zfs-s...

zfs on linux available as root partition since 20.04. Working quite well I might add!

Re: OpenZFS 2.0

#57

Post by ed25519FUUU »

mlex wrote: post #25

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.

Aren't ZFS upgrades to existing vdevs really simple? I don't see any reason why you need to wait.

Re: OpenZFS 2.0

#58

Post by ed25519FUUU »

ariabuckles wrote: post #15
anderspitman wrote: post #8

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?

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)

btrfs was a really underutilized filesystem. It still has some superior features to zfs (such as offline deduplication), but the momentum now is clearly with zfs.

Re: OpenZFS 2.0

#59

Post by ed25519FUUU »

kbumsik wrote: post #24
anderspitman wrote: post #8

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?

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.

Reporting in from Ubuntu 20.04 with ZFS on root. It works great. No issues so far, other than docker requires "zfs" as the storage-driver and doesn't support overlay2. See: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/171...

Re: OpenZFS 2.0

#60

Post by ed25519FUUU »

Side note, they really should have in big-bold letters "DO NOT ENABLE DEDUPLICATION UNLESS YOU HAVE A TON OF RAM!" on their readme. That was a huge mistake on my part. The ram requirements are VERY high for good performance.

I realized how bad the performance was when it took about 2 hours to delete 1000 files.

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