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Welcome to OpenZFS

OpenZFS Developer Summit 2022

OpenZFS Dev Summit 2022

The tenth annual OpenZFS Developer Summit will be held in person, Oct 24-25 (Mon-Tue) in San Francisco.

Register via EventBrite See the OpenZFS Developer Summit 2022 event page for more info.

Title Speaker Company
State of OpenZFS Matt Ahrens Delphix
Operating OpenZFS at scale Satabdi Das Amazon
Block Cloning for OpenZFS Pawel Jakub Dawidek Fudo Security
CHERI memory safety Brooks Davis SRI International
zvol performance Tony Hutter LLNL
Run ZFS in userland Ping Huang SmartX
Refining OpenZFS compression Rich Ercolani Independent
Faster ZFS scrub and other improvements Alexander Motin iXsystems
Storage Multi-Tenancy For Containers Allan Jude Klara Systems
Shared L2ARC Christian Schwarz Nutanix

See OpenZFS Developer Summit 2021 for presentations and information about last year's (virtual) conference.

Introduction to OpenZFS

OpenZFS is an open-source storage platform. It includes the functionality of both traditional file systems and volume manager. It has many advanced features including:

  • Protection against data corruption. Integrity checking for both data and metadata.
  • Continuous integrity verification and automatic “self-healing” repair
    • Data redundancy with mirroring, RAID-Z1/2/3 [and DRAID]
  • Support for high storage capacities — up to 256 trillion yobibytes (2^128 bytes)
  • Space-saving with transparent compression using LZ4, GZIP or ZSTD
  • Hardware-accelerated native encryption
  • Efficient storage with snapshots and copy-on-write clones
  • Efficient local or remote replication — send only changed blocks with ZFS send and receive

Contributing to OpenZFS

The OpenZFS project brings together developers from the Linux, FreeBSD, illumos, MacOS, and Windows platforms. OpenZFS is supported by a wide range of companies.

There are many ways to contribute to OpenZFS including:

Get Started with OpenZFS

Frequently Asked Questions

OpenZFS concepts

A non-exhaustive list of OpenZFS features

OpenZFS Technical Resources

How to install OpenZFS

OpenZFS manual pages

Feature Details. Detailed subsystem/feature blogs, on-disk format specifications: Developer Resources

We accept donations to cover our ongoing costs.

OpenZFS is an associated project of SPI (Software in the Public Interest). SPI is a 501(c)(3) nonprofit organization which handles our donations, finances, and legal holdings. You can donate through paypal using the link below:



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