OpenZFS Developer Summit

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2015 ozds event page v5.png The third annual OpenZFS Developer Summit will be held in San Francisco, October 19 - 20, 2015. This will be the 10th 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).

Details about registration, proposing presentations, deadlines, and sponsorship opportunities are provided on this page.

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



Registration for the 2015 Summit is open! Please register on Eventbrite.

  • There will be no registration deadline - the registration will remain open until capacity is reached.
  • Registration is $50 per attendee. If your company is a sponsor (as listed below), you may be eligible for a free registration. Please contact admin at open-zfs dot org if that is the case. Speakers will also receive free registration.

All attendees are expected to contribute/participate. Your ideas and questions are what make the event exciting!

Event Logistics


Note: Day 1 and Day 2 of the event will take place in different locations less than a 20 minute walk apart.

Day 1: Conference - Monday, October 19, 2015

Children’s Creativity Museum at 221 Fourth Street, San Francisco, CA 94103, behind the Carousel at the corner of Fourth and Howard. This is the same location as Day 1 of the 2014 event, but we will be in the theater this time.

Day 2: Hackathon - Tuesday, October 20, 2015

GitHub at 88 Colin P. Kelly Jr St, San Francisco, CA 94107, which is a street that runs between Brannan and Townsend St, between 2nd and King Streets. The entrance is very close to the corner with Brannan St. Once there, let the security guard know that you are there for the hackathon.

If biking to the hackathon, go into the employee entrance at 275 Brannan Street, San Francisco, CA 94107. Let them know you are there for the hackathon, and they will let you store your bicycle. They will then direct you to the appropriate entrance.


Note that the optional, off-site dinners on Sunday and Tuesday are at your own expense.

Sunday, October 18, 2015
Time Title
~6:30pm Optional Dinner (Location: TBD)
Monday, October 19, 2015
Time Title Speaker Company
9:00am – 9:30am Registration & Breakfast
9:30am – 9:45am Keynote Matt Ahrens Delphix
9:45am – 10:00am OpenZFS Success Stories Tarkan Maner Nexenta
10:00am – 10:45am ZFS Internals Overview Kirk McKusick Independent
10:45am – 11:00am Break
11:00am – 11:30am ZFS Send and Receive Paul Dagnelie Delphix
11:30am – 11:45am Compressed Send and Receive Dan Kimmel Delphix
11:45am – 12:00pm Live Migration with Zmotion Francois Lesage OVH
12:00pm – 12:45pm Lunch
12:45pm – 1:00pm The Birth of ZFS Jeff Bonwick DSSD, EMC
1:00pm – 1:30pm Parity Declustered RAID-Z/Mirror Isaac Huang Intel
1:30pm – 1:45pm Improve Performance on AWS with Eager Zero Joe Stein Delphix
1:45pm – 2:15pm Break
2:15pm – 2:45pm Compressed ARC George Wilson Delphix
2:45pm – 3:00pm Discontiguous Caching with ABD David Chen OSNexus
3:00pm – 3:15pm Persistent L2ARC Saso Kiselkov Nexenta
3:15pm – 3:30pm Dedup Ceiling Saso Kiselkov Nexenta
3:30pm – 4:00pm Break
4:00pm – 4:30pm Writeback Cache Alex Aizman Nexenta
4:30pm – 4:45pm Sandboxing OpenZFS on Linux Albert Lee OmniTI
4:45pm – 5:00pm Ztour Don Brady Intel
5:00pm – 5:15pm SPA Metadata Allocation Classes Don Brady Intel
5:15pm – 5:30pm Closing Matt Ahrens Delphix
5:30pm Beer Bash & Casual Dinner at Conference Venue
Tuesday, October 20, 2015
Time Title
9:00am – 9:30am Breakfast
9:30am –10:45am Hackathon
10:45am – 11:00am Break
11:00am – 12:00pm Hackathon
12:00pm – 12:45pm Lunch
12:45pm – 1:45pm Hackathon
1:45pm – 2:15pm Break
2:15pm – 3:30pm Hackathon
3:30pm – 4:00pm Break
4:00pm – 5:30pm Hackathon Presentations, Awards & Closing
6:00pm Optional Dinner (Location: TBD)

Event deadlines

Sept 25, 2015 Register by this date to ensure you get a t-shirt in your size
Oct 12, 2015 Agenda finalized
Oct 19 - 20, 2015 OpenZFS Developer Summit


Committed sponsors

Thanks to our sponsors who have already committed to sponsoring the 2015 event:

Beer Bash

ClusterHQ-logo 1A---FC-w-strap-black-1360x568.png


Delphix logo.png GitHub Logo.png New hac logo.jpg
Nexenta-GL-logo-tagline.jpg OsNexus.png OmniTI-logo.jpeg


RGB iXsystems Logo 2015 OnLight M.png Syneto-logo-Sept14.svg Intel.png


Storiant.png Datto logo 7692 cmyk.png Logo freebsdfoundation.png RackTop-Systems.jpg



Sponsorship opportunities and benefits

The full details of the monetary sponsorship options and the associated rewards can be viewed in the sponsorship plan.

All of our sponsors have an opportunity to be known as a OpenZFS supporter in a very talented and influential community.

Please send email to admin at open-zfs dot org if you would like to sponsor the event.

Other ways to sponsor

If you are interested in supporting the event through non-monetary means, we would be happy to match the sponsorship packages to the effort.

  • Video record and stream the presentations
  • Photograph the event
  • Help with setup/administrative tasks related to the conference

Thanks to our generous sponsors for their help:

  • Hackathon prizes - Thank you Nexenta!
  • Conference branding, t-shirt and banner design - Thank you Aaron Holding!
  • Design and create conference badges - Thank you Syneto!


The goals of the hackathon are:

  • to get people working with ZFS engineers from outside their normal circles
  • to start work on some of the projects we'd like to accomplish

Therefore, we should plan to work in small teams of 2-3 engineers. The team members could be pair-programming, splitting up the work into discrete tasks for each person, or advising / implementing.

Hackathon ideas

Add your idea and your name below. Be prepared to explain your idea at the beginning of the hackathon and enlist/entice others to help with it.

Harassment Policy

OpenZFS Developer Summit is dedicated to providing a harassment-free conference experience for everyone, regardless of gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age or religion. We do not tolerate harassment of conference participants in any form. Sexual language and imagery is not appropriate for any conference venue, including talks. Conference participants violating these rules may be sanctioned or expelled from the conference at the discretion of the conference organizers.


Intel and the Intel logo are trademarks of Intel Corporation in the U.S. and/or other countries.

For information about last year's event, see the OpenZFS Developer Summit 2014 page.