Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

OpenZFS 2.0

github.com

Post reply on HN
Print view View original

1–10 of 151 posts

Re: OpenZFS 2.0

#2

Post by mholt »

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.)

Re: OpenZFS 2.0

#3

Post by iotku »

mholt wrote: post #2

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.)

> 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.

Re: OpenZFS 2.0

#4

Post by codetrotter »

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?

Re: OpenZFS 2.0

#6

Post by 0xCMP »

codetrotter wrote: post #4

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…

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.

Re: OpenZFS 2.0

#7

Post by vorpalhex »

codetrotter wrote: post #4

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…

That's a protocol problem, use a protocol such as rsync. You don't need to use redacted sends/recvs.

Re: OpenZFS 2.0

#8

Post by anderspitman »

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?

Re: OpenZFS 2.0

#9

Post by mholt »

iotku wrote: post #3
mholt wrote: post #2

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.)

> 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.

Ah, I was wondering what happened since I stopped hearing about "ZFS on Linux" so now I know what to search for. Thanks!
Post reply on HN