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asomers f384c045d8 OpenZFS 8473 - scrub does not detect errors on active spares 
Scrubbing is supposed to detect and repair all errors in the pool.
However, it wrongly ignores active spare devices. The problem can
easily be reproduced in OpenZFS at git rev 0ef125d with these
commands:

    truncate -s 64m /tmp/a /tmp/b /tmp/c
    sudo zpool create testpool mirror /tmp/a /tmp/b spare /tmp/c
    sudo zpool replace testpool /tmp/a /tmp/c
    /bin/dd if=/dev/zero bs=1024k count=63 oseek=1 conv=notrunc of=/tmp/c
    sync
    sudo zpool scrub testpool
    zpool status testpool # Will show 0 errors, which is wrong
    sudo zpool offline testpool /tmp/a
    sudo zpool scrub testpool
    zpool status testpool # Will show errors on /tmp/c,
                          # which should've already been fixed

FreeBSD head is partially affected: the first scrub will detect
some errors, but the second scrub will detect more.  This same
test was run on Linux before applying the fix and the FreeBSD
head behavior was observed.

Authored by: asomers <asomers@FreeBSD.org>
Reviewed by: Andy Stormont <astormont@racktopsystems.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Richard Lowe <richlowe@richlowe.net>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Sponsored by: Spectra Logic Corp

OpenZFS-issue: https://www.illumos.org/issues/8473
FreeBSD-commit: https://github.com/freebsd/freebsd/commit/e20ec8879
OpenZFS-commit: https://github.com/illumos/illumos-gate/commit/554675ee
Closes #8251
2019-01-08 09:51:30 -08:00
.github Bump commit subject length to 72 characters 2019-01-08 09:23:05 -08:00
cmd Add 'zpool status -i' option 2019-01-07 11:03:18 -08:00
config pyzfs: python3 support (build system) 2019-01-06 10:39:41 -08:00
contrib pyzfs: python3 support (build system) 2019-01-06 10:39:41 -08:00
etc Add enclosure_symlinks option to vdev_id 2018-12-14 17:27:49 -08:00
include zfs initialize performance enhancements 2019-01-07 11:03:08 -08:00
lib Include third party licenses in dist tarballs 2019-01-08 09:29:34 -08:00
man zfs.8 uses wrong snapshot names in Example 15 2019-01-07 11:08:54 -08:00
module OpenZFS 8473 - scrub does not detect errors on active spares 2019-01-08 09:51:30 -08:00
rpm Fix missing dkms modules after upgrades 2019-01-08 09:26:45 -08:00
scripts Bump commit subject length to 72 characters 2019-01-08 09:23:05 -08:00
tests Add 'zpool status -i' option 2019-01-07 11:03:18 -08:00
udev Add enclosure_symlinks option to vdev_id 2018-12-14 17:27:49 -08:00
.gitignore pyzfs: python3 support (build system) 2019-01-06 10:39:41 -08:00
.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 OpenZFS 9102 - zfs should be able to initialize storage devices 2019-01-07 10:37:26 -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 Include third party licenses in dist tarballs 2019-01-08 09:29:34 -08:00
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.