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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


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?

May: Join us for the first OpenZFS European Conference on May 20th in Paris.

May: Matt Ahrens will be speaking at BSDcan and dotScale.

March: Matt Ahrens delivered a keynote presentation at AsiaBSDcon in Tokyo. With additional ZFS-focused talks by Michael Dexter, Dru Lavigne, and Kris Moore.

November: video and slides from the OpenZFS Developer Summit.

Site orientation

All main pages (alphabetical order) …