zfs-2.3.0

We are excited to announce the release of OpenZFS 2.3.0.

Key Features in OpenZFS 2.3.0:

• RAIDZ Expansion (#15022): Add new devices to an existing RAIDZ pool, increasing storage capacity without downtime.
• Fast Dedup (#15896): A major performance upgrade to the original OpenZFS deduplication functionality.
• Direct IO (#10018): Allows bypassing the ARC for reads/writes, improving performance in scenarios like NVMe devices where caching may hinder efficiency.
• JSON (#16217): Optional JSON output for the most used commands.
• Long names (#15921): Support for file and directory names up to 1023 characters.
• Bug Fixes: A series of critical bug fixes addressing issues reported in previous versions.
• Numerous performance improvements throughout the code base.
• Supported Platforms:
  • Linux kernels 4.18 - 6.12,
  • FreeBSD releases 13.3, 14.0 - 14.2.

Additional Information:

• Documentation - OpenZFS documentation for Linux and FreeBSD.

• Change log - Complete v2.2.0 - v2.3.0 change log

  Thank you to all 134 contributors who participated in this release cycle

  [behlendorf1@pip zfs]$ git shortlog -s zfs-2.2.0..zfs-2.3.0
     4  Ahelenia Ziemiańska
     2  Akash B
    12  Alan Somers
     1  Alek Pinchuk
   144  Alexander Motin
     6  Allan Jude
     1  Alphan Yılmaz
    26  Ameer Hamza
     2  Andrea Righi
     2  Andrew Innes
     2  Andrew Turner
     1  Andrew Walker
     1  Andy Fiddaman
     2  Benda Xu
     1  Benjamin Sherman
     1  Bojan Novković
     8  Brian Atkinson
    61  Brian Behlendorf
     4  Brooks Davis
     2  Cameron Harr
     1  ChenHao Lu
     1  Chris Davidson
     1  Chris Peredun
     9  Chunwei Chen
    14  Coleman Kane
     1  Colin Percival
     3  Dag-Erling Smørgrav
     2  Daniel Berlin
     1  Daniel Perry
     1  Dennis R. Friedrichsen
     1  Derek Schrock
     1  Dex Wood
     3  Dimitry Andric
    13  Don Brady
     4  Edmund Nadolski
     2  Fabian-Gruenbichler
     4  George Amanakis
     5  George Melikov
     3  George Wilson
     6  Gionatan Danti
     1  Gleb Smirnoff
     1  Gordon Tetlow
     1  Ilkka Sovanto
     1  Ivan Volosyuk
     1  JKDingwall
     1  James Reilly
     1  Jaron Kent-Dobias
     2  Jason King
     2  Jason Lee
     1  Jessica Clarke
     4  Jitendra Patidar
     1  John Wren Kennedy
     1  Jose Luis Duran
     1  José Luis Salvador Rufo
     1  Justin Gottula
     4  Kay Pedersen
     1  Kent Ross
     1  Kevin Greene
     1  Kevin Jin
     1  Lalufu
     1  Laura Hild
     1  Mariusz Zaborski
    17  Mark Johnston
     3  Mart Frauenlob
     9  Martin Matuška
     1  Martin Wagner
     4  Mateusz Guzik
     7  Mateusz Piotrowski
     1  Matthew Ahrens
     1  Matthew Heller
     1  Mauricio Faria de Oliveira
     1  Maxim Filimonov
     2  MigeljanImeri
     1  Olivier Certner
    14  Paul Dagnelie
     6  Pavel Snajdr
     6  Pawel Jakub Dawidek
     1  Peter Doherty
     1  Piotr P. Stefaniak
     1  Poscat
     1  Qiuhao Chen
     1  Quartz
     1  Rafael Kitover
    12  Rich Ercolani
     3  Richard Kojedzinszky
     1  Richard Yao
     3  Rick Macklem
   370  Rob Norris
     6  Robert Evans
     1  Ryan
     1  Ryan Lahfa
     1  Sam Atkinson
     2  Sam James
     2  Sanjeev Bagewadi
     1  Sebastian Wuerl
     4  Serapheim Dimitropoulos
     1  Seth Hoffert
     2  Seth Troisi
     1  Shawn Bayern
    14  Shengqi Chen
     1  Sietse
     1  Stefan Lendl
     1  Steve Mokris
     5  Stoiko Ivanov
     2  Theera K.
     1  Thomas Bertschinger
    30  Tino Reichardt
     1  Todd Seidelmann
     1  Tomohiro Kusumi
    31  Tony Hutter
     5  Toomas Soome
    35  Umer Saleem
     2  Vaibhav Bhanawat
     1  Val Packett
     1  Volker Mauel
     2  WHR
     1  Warner Losh
     1  Wojciech Małota-Wójcik
     1  XDTG
     2  Youzhong Yang
     3  Yuri Pankov
     2  Yuxin Wang
     1  Zach Dykstra
     1  Zhao Yongming
     1  Zhenlei Huang
     1  glibg10b
     1  gofaster
     1  kotauskas
     1  n0-1
     1  ofthesun9
     2  omni
     2  rilysh
     1  tleydxdy
     3  tstabrawa
  

• Module option changes - See the module parameters documentation for the complete list of the options and what they control.

  New module options

  • dmu_ddt_copies
  • raidz_expand_max_copy_bytes
  • raidz_expand_max_reflow_bytes
  • raidz_io_aggregate_rows
  • spa_cpus_per_allocator
  • spa_num_allocators
  • zap_shrink_enabled
  • zfetch_max_idistance
  • zfs_active_allocator
  • zfs_arc_shrinker_seeks
  • zfs_dedup_log_flush_entries_min
  • .zfs_dedup_log_flush_flow_rate_txgs
  • zfs_dedup_log_flush_min_time_ms
  • zfs_dedup_log_flush_passes_max
  • zfs_dedup_log_mem_max
  • zfs_dedup_log_mem_max_percent
  • zfs_dedup_log_txg_max
  • zfs_dio_enabled
  • zfs_dio_write_verify_events_per_second
  • zfs_resilver_defer_percent
  • zfs_scrub_after_expand
  • zfs_snapshot_no_setuid
  • zfs_vdev_direct_write_verify
  • zio_taskq_write_tpq
  Removed module options

  • zfetch_array_rd_sz
  Modified module options

  • zfs_arc_shrinker_limit
  • zfs_bclone_enabled
  • zfs_vdev_disk_classic
  • zio_taskq_write