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Tony Hutter 6568379eea Fix statechange-led.sh & unnecessary libdevmapper warning 
- Fix autoreplace behaviour on statechange-led.sh script.

ZED sends the following events on an auto-replace:

1. statechange: Disk goes UNAVAIL->ONLINE
2. statechange: Disk goes ONLINE->UNAVAIL
3. vdev_attach: Disk goes ONLINE

Events 1-2 happen when ZED first attempts to do an auto-online.  When that
fails, ZED then tries an auto-replace, generating the vdev_attach event in #3.

In the previous code, statechange-led was only looking at the UNAVAIL->ONLINE
transition to turn off the LED.  It ignored the #2 ONLINE->UNAVAIL transition,
assuming it was just the "old" VDEV going offline.  This is problematic, as
a drive can go from ONLINE->UNAVAIL when it's malfunctioning, and we don't want
to ignore that.

This new patch correctly turns on the fault LED every time a drive becomes
UNAVAIL.  It also monitors vdev_attach events to trigger turning off the LED
when an auto-replaced disk comes online.

- Remove unnecessary libdevmapper warning with --with-config=kernel

This fixes an unnecessary libdevmapper warning when building
--with-config=kernel.  Kernel code does not use libdevmapper, so the warning
is not needed.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #2375 
Closes #5312 
Closes #5331
2016-10-25 11:05:30 -07:00
cmd Fix statechange-led.sh & unnecessary libdevmapper warning 2016-10-25 11:05:30 -07:00
config Fix taskq creation failure in vdev_open_children() 2016-10-24 13:28:58 -07:00
contrib Update .gitignore 2016-10-19 14:29:33 -07:00
etc Change /etc/mtab to /proc/self/mounts 2016-09-20 10:07:58 -07:00
include Turn on/off enclosure slot fault LED even when disk isn't present 2016-10-24 10:45:59 -07:00
lib Fix coverity defects: CID 147511, 147513 2016-10-24 13:37:38 -07:00
man Fletcher4 algorithm implemented in pure NEON for Aarch64 / ARMv8 64 bits 2016-10-21 10:55:49 -07:00
module Fix statechange-led.sh & unnecessary libdevmapper warning 2016-10-25 11:05:30 -07:00
rpm Multipath autoreplace, control enclosure LEDs, event rate limiting 2016-10-19 12:55:59 -07:00
scripts Add icp kernel module to dkms build 2016-10-06 10:31:42 -07:00
tests Disable zpool_upgrade_002_pos test case 2016-10-24 16:39:47 -07:00
udev Allow partition aliases in vdev_id.conf (#5266) 2016-10-14 16:11:16 -07:00
.gitignore Update .gitignore 2016-10-19 14:29:33 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Fix statechange-led.sh & unnecessary libdevmapper warning 2016-10-25 11:05:30 -07:00
copy-builtin Illumos Crypto Port module added to enable native encryption in zfs 2016-07-20 10:43:30 -07:00
COPYRIGHT Update ZED copyright boilerplate 2015-05-11 15:07:00 -07:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Introduce a make recipe for flake8 2016-10-06 10:52:21 -07:00
META Tag 0.7.0-rc1 2016-09-07 10:31:23 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
TEST Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
zfs-script-config.sh.in Introduce tests for python scripts 2016-10-06 13:11:57 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

Native ZFS for Linux!

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

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org