6 ms·

ZFS officially coming to Ubuntu 16.04

12 points by bcantrill 11y ago

melted 11y ago
I thought the license was incompatible? Also, what does this mean for BTRFS?
- ferrari8608 11y ago
  The license does not allow for ZFS to be included in the kernel. It runs in user space.
  - melted 11y ago
    Then perf will likely suck.
    - ferrari8608 11y ago
      That really just depends on the configuration. NTFS-3G has done pretty well in user space, so there's no reason ZFS can't.
      - melted 11y ago
        NTFS-3G didn't have to perform well at NVME latencies and speeds. This has to, to be taken seriously.
  - cballard 11y ago
    I don't know much about Linux kernel architecture, but could it be a separate binary loaded at runtime by the kernel, so that it's not actually part of the kernel?
    - melted 11y ago
      That's how http://zfsonlinux.org/ http://zfsonlinux.org/ approaches it. Maybe Ubuntu will just package it in the standard distro. That'd be a bit underwhelming if that's what it is. From what little I know about ZFS, its designers basically thought that traditional layering of how storage is approached in UNIX didn't make sense, so they re-did much of it from scratch. As a result, ZFS doesn't really natively fit as a pluggable filesystem.
abrookewood 11y ago
Details please ...
- abrookewood 11y ago
  Assuming I can reply to my own post? Anyway, I dug up comments from a Gentoo Developer and ZFS On Linux contributor, Richard Yaoon Phoronix: "Michael's prediction that 15.10 will use a DKMS package is likely correct ... there is no legal issue preventing the sources from being combined because neither the CDDL nor the GPL place restrictions on aggregations of source code, which is what putting ZFS into the same tree as Linux would be. Binary modules built from such a tree could be distributed with the kernel's GPL modules under what the GPL considers to be an aggregate" http://www.phoronix.com/forums/forum/software/general-linux-open-source/827623-ubuntu-is-planning-to-make-the-zfs-file-system-a-standard-offering http://www.phoronix.com/forums/forum/software/general-linux-... Edit: Some other details on Softpedia including a comment from a Canonical developer. http://news.softpedia.com/news/zfs-file-system-for-ubuntu-16-04-lts-is-90-ready-498166.shtml http://news.softpedia.com/news/zfs-file-system-for-ubuntu-16...

12 points by bcantrill 11y ago

melted 11y ago

I thought the license was incompatible? Also, what does this mean for BTRFS?

ferrari8608 11y ago
The license does not allow for ZFS to be included in the kernel. It runs in user space.
- melted 11y ago
  Then perf will likely suck.
  - ferrari8608 11y ago
    That really just depends on the configuration. NTFS-3G has done pretty well in user space, so there's no reason ZFS can't.
    - melted 11y ago
      NTFS-3G didn't have to perform well at NVME latencies and speeds. This has to, to be taken seriously.
- cballard 11y ago
  I don't know much about Linux kernel architecture, but could it be a separate binary loaded at runtime by the kernel, so that it's not actually part of the kernel?
  - melted 11y ago
    That's how http://zfsonlinux.org/ http://zfsonlinux.org/ approaches it. Maybe Ubuntu will just package it in the standard distro. That'd be a bit underwhelming if that's what it is. From what little I know about ZFS, its designers basically thought that traditional layering of how storage is approached in UNIX didn't make sense, so they re-did much of it from scratch. As a result, ZFS doesn't really natively fit as a pluggable filesystem.

abrookewood 11y ago

Details please ...

abrookewood 11y ago
Assuming I can reply to my own post? Anyway, I dug up comments from a Gentoo Developer and ZFS On Linux contributor, Richard Yaoon Phoronix: "Michael's prediction that 15.10 will use a DKMS package is likely correct ... there is no legal issue preventing the sources from being combined because neither the CDDL nor the GPL place restrictions on aggregations of source code, which is what putting ZFS into the same tree as Linux would be. Binary modules built from such a tree could be distributed with the kernel's GPL modules under what the GPL considers to be an aggregate" http://www.phoronix.com/forums/forum/software/general-linux-open-source/827623-ubuntu-is-planning-to-make-the-zfs-file-system-a-standard-offering http://www.phoronix.com/forums/forum/software/general-linux-... Edit: Some other details on Softpedia including a comment from a Canonical developer. http://news.softpedia.com/news/zfs-file-system-for-ubuntu-16-04-lts-is-90-ready-498166.shtml http://news.softpedia.com/news/zfs-file-system-for-ubuntu-16...