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Richard Elling a48cd034c8 Seeing negative values for wlentime and rlentime 
Linux kstat IO and TIMER printed values as signed. However the counters
only increment. Thus humans looking at the data can be confused when
the counters roll over.

Note: The recommended use of these values is to monitor the derivative,
which don't really care about the sign. See explanations related to
non-negative derivatives in the various time-series databases.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Richard Elling <Richard.Elling@RichardElling.com>
Closes #8131 
Closes #8198
2018-12-11 13:56:54 -08:00
.github Advise users to retain issue/PR templates 2018-10-17 10:25:38 -07:00
cmd OpenZFS 9962 - zil_commit should omit cache thrash 2018-12-07 11:09:42 -08:00
config Rename macro ZFS_MINOR due to Lustre conflict 2018-12-10 16:52:49 -08:00
contrib Allow spaces in pool names for cmdline argument 2018-11-11 18:23:11 -08:00
etc zfs-functions.in: is_mounted() always returns 1 2018-12-04 09:57:29 -08:00
include OpenZFS 9962 - zil_commit should omit cache thrash 2018-12-07 11:09:42 -08:00
lib OpenZFS 9880 - Race in ZFS parallel mount 2018-12-07 11:02:23 -08:00
man OpenZFS 9963 - Separate tunable for disabling ZIL vdev flush 2018-12-07 11:06:29 -08:00
module Seeing negative values for wlentime and rlentime 2018-12-11 13:56:54 -08:00
rpm Fix systemd spec file macros 2018-11-11 18:06:36 -08:00
scripts Do not enable stack tracer for ZFS performance test 2018-12-07 10:51:42 -08:00
tests Fix ASSERT in zfs_receive_one() 2018-12-04 09:38:55 -08:00
udev Add kernel module auto-loading 2018-03-13 10:45:55 -07:00
.gitignore Ignore *.o.ur-safe build artifacts 2018-05-13 18:59:02 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac Add libzutil for libzfs or libzpool consumers 2018-11-05 11:22:33 -08:00
copy-builtin Allow copy-builtin to work with modified sources 2018-10-17 12:06:05 -07:00
COPYRIGHT Update build system and packaging 2018-05-29 16:00:33 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Linux does not HAVE_DNLC 2018-10-17 10:30:08 -07:00
META Tag 0.8.0-rc2 2018-11-12 11:57:15 -08:00
NEWS Add NEWS file 2018-09-18 12:03:47 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Explicitly state supported Linux versions 2018-05-30 20:11:19 -07:00
TEST Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux 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 kernel versions.