OpenZFS on Linux and FreeBSD
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Rich Ercolani f2330bd156
Default zfs_max_recordsize to 16M
Increase the default allowed maximum recordsize from 1M to 16M.
As described in the zfs(4) man page, there are significant costs
which need to be considered before using very large blocks.
However, there are scenarios where they make good sense and
it should no longer be necessary to artificially restrict their
use behind a module option.

Note that for 32-bit platforms we continue to leave this
restriction in place due to the limited virtual address space
available (256-512MB).  On these systems only a handful
of blocks could be cached at any one time severely impacting
performance and potentially stability.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12830
Closes #13302
2022-04-28 15:12:24 -07:00
.github CI: Log test name to /dev/kmsg in ZTS 2022-03-24 08:01:26 -06:00
cmd zfs: holds: dequadratify 2022-04-27 11:55:40 -07:00
config Linux 5.18 compat: replace __set_page_dirty_nobuffers 2022-04-27 12:54:17 -07:00
contrib contrib: dracut: remove getargbool polyfill 2022-04-20 16:45:54 -07:00
etc linux: module: weld all but spl.ko into zfs.ko 2022-04-20 13:28:24 -07:00
include Improve log spacemap load time 2022-04-26 10:44:21 -07:00
lib Improve zpool status output, list all affected datasets 2022-04-25 17:25:42 -07:00
man Default zfs_max_recordsize to 16M 2022-04-28 15:12:24 -07:00
module Default zfs_max_recordsize to 16M 2022-04-28 15:12:24 -07:00
rpm linux: module: weld all but spl.ko into zfs.ko 2022-04-20 13:28:24 -07:00
scripts scripts: zfs.sh: explicitly unload all modules via rmmod 2022-04-21 16:33:12 -07:00
tests Default zfs_max_recordsize to 16M 2022-04-28 15:12:24 -07:00
udev Udev rules: remove zvol compat symlinks (without the leading zvol/) 2021-07-06 13:41:17 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
META Linux 5.17 compat: META 2022-03-23 08:52:30 -07:00
Makefile.am linux: module: weld all but spl.ko into zfs.ko 2022-04-20 13:28:24 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md README: Update OpenZFS website url 2022-01-06 16:25:01 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac linux: module: weld all but spl.ko into zfs.ko 2022-04-20 13:28:24 -07:00
copy-builtin copy-builtin: posix conformance 2021-05-08 08:58:26 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.