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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

OpenZFS Developer Summit 2015

The third annual OpenZFS Developer Summit will be held in San Francisco, October 19 - 20, 2015, celebrating the 10 year anniversary of the open sourcing of ZFS! All OpenZFS developers are invited to participate.

The goal of the event is to foster cross-community discussions of OpenZFS work and to make progress on some of the projects we have proposed. This 2-day event will consist of 1 day of presentation (Oct 19) and a 1 day hackathon (Oct 20).

Registration is open! Please register by Sept 25, 2015 to ensure you get a t-shirt in your size.

We have a great lineup of speakers! See the OpenZFS Developer Summit 2015 for details.

Thanks to the 2015 Beer Bash and Platinum sponsors for their support!

Delphix logo.png GitHub Logo.png ClusterHQ-logo 1A---FC-w-strap-black-1360x568.png New hac logo.jpg
Nexenta-GL-logo-tagline.jpg OsNexus.png OmniTI-logo.jpeg


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?

June: Videos from the OpenZFS European Conference are posted.

June: BSDCAN will be held June 12-13 in Ottawa, Canada.

April: OpenZFS Office Hours with Justin Gibbs was held April 2nd

November: The OpenZFS Developer Summit 2014 was held November 10-11th.

Site orientation

All main pages (alphabetical order) …