Datto will be hosting the 2nd annual ZFS User Conference featuring ZFS co-creator, Matt Ahrens! The date is April 19-20 at Datto HQ in Norwalk, CT.
This conference will focus on the deployment, administration, features, and tuning of the ZFS filesystem. Learn about OpenZFS and network with folks running businesses and interesting projects on ZFS.
For more information and registration see http://zfs.datto.com
(I won't be attending as I'm not longer using ZFS, but I'm still a ZFS fanboy so I felt like promoting this.)