Comments on: ZFS vs. OpenZFS

By: John

John — Fri, 04 Dec 2020 18:02:07 +0000

However, OpenZFS is not backwards compatible with Solaris ZFS, in fact OpenZFS destroys ZFS disks. Try this:
– Create a zpool from Solaris 11.3 using the common version 28 which all ZFS derivatives can handle.
– Import this zpool into Ubuntu 2020.10 using OpenZFS v0.8.4.
– Copy data to the zpool via zfs send recv
– Import this zpool back to Solaris 11.3 – this will fail. Solaris say the disk is unavailable and unusable.
OpenZFS messes up ZFS disks by changing them

By: John

John — Thu, 03 Dec 2020 18:35:08 +0000

I would expect that all ZFS derivatives can handle zpool created with version 28, because that is the latest version released by Oracle into the wild. But that is not true, OpenZFS v0.8.4 on Ubuntu 2020.10 destroys Solaris 11 ZFS disks.

By: Wwwarren

Wwwarren — Thu, 13 Feb 2020 20:57:32 +0000

In reply to Seth. I would rather it NOT become GPL as the GPL is a restrictive license. Leave it as BSD or even Apache.

By: Bill S

Bill S — Wed, 19 Jun 2019 06:07:50 +0000

In reply to Kevdog.

ZFS on Linux and ZFS on Freenas both support feature flags, the problem has been that various new flags have rolled out from different vendors at different times and it’s taken a long time to reach parity between ZoL, Illumos and FreeBSD and it’s vary easy to create a pool on one system that can’t be imported on a system that doesn’t yet support the flags used by the pool. Of course you can always make a pool as an ‘older’ version but it requires effort and care. FreeBSD and ZoL can still import old Solaris 10 zpools, as long as they weren’t upgraded to a newer Oracle ZFS version post openzfs split for example.
The general goal now from what I understand is to unify the BSD and ZoL codebase into a singular unit reducing the problem and adding tools to make it easier to create portable pools.

By: ZFSlover

ZFSlover — Mon, 25 Mar 2019 19:50:29 +0000

In reply to Steve M. Clearly somebody doesn't know what open-source is. Patent issues could be fixed by filing with OIN. Code base has changed enough (over 50%) that I'm pretty sure they could have their own patent now. That or somehow convince evil Oracle to put the patent for ZFS currently under CDDL license under OIN. But Oracle won't because that isn't the type company they are. Microsoft did for everything and no one saw that coming so who knows? But Oracle continues to be a beast that needs to be put down.

By: Jeff Bezos

Jeff Bezos — Wed, 27 Feb 2019 12:01:28 +0000

In reply to Kevdog.

FreeNAS doesn’t do any ZFS development. FreeBSD might have some feature flags that aren’t yet upstream. Both FeeeBSD and ZoL submit code upstream to OpenZFS.
Recently the FreeBSD guys announced they will be rebasing their efforts treating ZoL as upstream because that’s where the majority of ZFS development is these days.

By: Jeff Bezos

Jeff Bezos — Wed, 27 Feb 2019 11:57:01 +0000

In reply to Seth. CDDL provides patent protections that evaporate if the license starts to change. All the code that's been replaced has been replaced with CDDL code. The project won't switch licenses.

By: Jim Floberts

Jim Floberts — Wed, 13 Feb 2019 05:36:02 +0000

In reply to Steve M. You've got no clue what yo are talking about, do you.....

By: Steve M

Steve M — Mon, 14 Jan 2019 03:40:12 +0000

In reply to Seth. Highly unlikely, unless someone criminally releases the code. Stop stealing other's work, create your own file system.

By: Yatti420

Yatti420 — Fri, 01 Jun 2018 02:57:15 +0000

One of these days Sun Oracle will just let it all out. No worries.