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Brian Behlendorf d56f3cb331 zhack: add "action idle" subcommand
In order to reliably test the multihost protection we need two (or more)
systems attempting to import the pool at the same time.  Historically, we've
used ztest running in userspace to simulate an active pool and attempted to
import the pool with the kernel modules.  This works but ztest is a bit
unwieldy for this and if it crashes for unrelated reasons it can result
in false positives.

All we really need is the pool imported in userspace so the MMP thread is
active and writing out uberblocks.  We can extend zhack which already knows
how to import the pool read/write and add an option to leave the pool open
and idle.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Akash B <akash-b@hpe.com>
2026-02-11 13:33:19 -08:00
.github CI: Test build Lustre against ZFS 2026-02-11 10:26:41 -08:00
cmd zhack: add "action idle" subcommand 2026-02-11 13:33:19 -08:00
config config/kmap_atomic: initialise test data 2025-12-17 11:24:44 -08:00
contrib Add allocation profile export and zhack subcommand for import 2026-02-11 10:27:01 -08:00
etc docs: fix a few small typos (#17804) 2025-10-21 10:35:58 -07:00
include mmp: claim sequence id before final import 2026-02-11 13:33:19 -08:00
lib mmp: claim sequence id before final import 2026-02-11 13:33:19 -08:00
man Enable zhack to work properly with 4k sector size disks 2026-02-11 13:33:12 -08:00
module mmp: claim sequence id before final import 2026-02-11 13:33:19 -08:00
rpm Add templated zfs-mount@.service 2025-08-19 10:30:04 -07:00
scripts CI: exclude signed-off-by/reviewed-by from 72 char limit 2025-12-19 19:55:14 -08:00
tests Add allocation profile export and zhack subcommand for import 2026-02-11 10:27:01 -08:00
udev zvol_id: make array length properly known at compile time 2025-12-17 11:24:44 -08:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 08:58:47 -08:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
.mailmap AUTHORS/mailmap: update with new contributors 2025-05-28 16:00:28 -07:00
AUTHORS AUTHORS/mailmap: update with new contributors 2025-05-28 16:00:28 -07:00
autogen.sh Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
CODE_OF_CONDUCT.md Documentation corrections 2022-12-22 11:34:28 -08:00
configure.ac Linux build: handle CONFIG_OBJTOOL_WERROR=y 2025-08-07 13:10:33 -04:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -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
Makefile.am spdxcheck: program to check SPDX license tags 2025-04-16 09:59:45 -07:00
META Linux 6.18: META 2025-12-17 11:24:44 -08:00
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 FreeBSD: remove support for FreeBSD < 13.0-RELEASE (#16372) 2024-08-05 16:56:45 -07:00
RELEASES.md Update RELEASES.md LTS release to 2.2 2025-02-25 22:27:10 +05:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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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 13.0-RELEASE.