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Welcome to OpenZFS


OpenZFS was announced in September 2013 as the truly open source successor to the ZFS project. Our community brings together developers from the illumos, FreeBSD, Linux, and OS X platforms, and a wide range of companies that build products on top of OpenZFS.

OpenZFS is an outstanding storage platform that encompasses the functionality of traditional filesystems, volume managers, and more, with consistent reliability, functionality and performance across all distributions:

illumos Webpage GitHub
FreeBSD Webpage GitHub
ZFS on Linux Webpage GitHub
OpenZFS on OS X Webpage GitHub

Upcoming Event: ZFS User Conference

The first ZFS User Conference will be held March 16-17, 2017, in Norwalk CT. This conference will focus on the deployment, administration, and tuning of the ZFS filesystem. Registration is open, and talk proposals are being accepted now. More information is available here:

OpenZFS Developer Summit 2016 <= click for details

The fourth annual OpenZFS Developer Summit was held in San Francisco, September 26-27th, 2016. Check out the following blog posts about the event:

Click on the title of the presentation for more details.

Title Speaker Company Video Slides
State of the Union Matt Ahrens Delphix Video Slides
Keynote Dustin Kirkland Canonical Video N/A
Lustre, Supercomputers, and ZFS Brian Behlendorf LLNL Video Slides
ZFS and Containers Michael Crogan Video Slides
Channel Programs Sara Hartse & Chris Williamson Delphix Video Slides
ZFS First Mount Mark Shellenbaum Oracle Video Slides
Scrub/Resilver Performance Saso Kiselkov Nexenta Video Slides
ZFS-Native Encryption Tom Caputi Datto Video Slides
Fault Management Don Brady & Justin Gibbs Intel & FreeBSD Foundation Video Slides
ZFS Validation & QA Sydney Vanda & John Salinas Intel Video Slides
Closing Matt Ahrens Delphix Video N/A

Thanks to the 2016 Platinum sponsors for their support!

  • Delphix
  • Intel
  • OSNexus
  • Nexenta
  • datto


The high-level goals of OpenZFS are:

  • to raise awareness of the quality, utility, and availability of open source implementations of ZFS
  • to encourage open communication about ongoing efforts to improve open source ZFS
  • to ensure consistent reliability, functionality, and performance of all distributions of ZFS.

The main technical goal of OpenZFS is easier sharing of code between platforms. Strategies include:

What's new?

September 2016: OpenZFS Developer Summit 2016 will be held September 26-27th in San Francisco.

October 2015: Slides and video from the OpenZFS Developer Summit 2015 are posted.

June 2015: Videos from the OpenZFS European Conference are posted.

Site orientation

All main pages (alphabetical order) …