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Multipath autoreplace, control enclosure LEDs, event rate limiting

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1. Enable multipath autoreplace support for FMA.

This extends FMA autoreplace to work with multipath disks.  This
requires libdevmapper to be installed at build time.

2. Turn on/off fault LEDs when VDEVs become degraded/faulted/online

Set ZED_USE_ENCLOSURE_LEDS=1 in zed.rc to have ZED turn on/off the enclosure
LED for a drive when a drive becomes FAULTED/DEGRADED.  Your enclosure must
be supported by the Linux SES driver for this to work.  The enclosure LED
scripts work for multipath devices as well.  The scripts will clear the LED
when the fault is cleared.

3. Rate limit ZIO delay and checksum events so as not to flood ZED

ZIO delay and checksum events are rate limited to 5/sec in the zfs module.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed by: Don Brady <don.brady@intel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #2449 
Closes #3017 
Closes #5159
This commit is contained in:
Tony Hutter
2016-10-19 12:55:59 -07:00
committed by Brian Behlendorf
parent 7c502b0b1d
commit 6078881aa1
24 changed files with 668 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/user-libdevmapper.m4
+15
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@@ -0,0 +1,15 @@
dnl #
dnl # Check for libdevmapper. libdevmapper is optional for building, but
dnl # required for auto-online/auto-replace functionality for DM/multipath
dnl # disks.
dnl #
AC_DEFUN([ZFS_AC_CONFIG_USER_LIBDEVMAPPER], [
AC_CHECK_HEADER([libdevmapper.h], [
AC_SUBST([LIBDEVMAPPER], ["-ldevmapper"])
AC_DEFINE([HAVE_LIBDEVMAPPER], 1, [Define if you have libdevmapper])
user_libdevmapper=yes
], [
user_libdevmapper=no
])
])
config/user.m4
+1
View File
@@ -12,6 +12,7 @@ AC_DEFUN([ZFS_AC_CONFIG_USER], [
ZFS_AC_CONFIG_USER_LIBTIRPC
ZFS_AC_CONFIG_USER_LIBBLKID
ZFS_AC_CONFIG_USER_LIBATTR
ZFS_AC_CONFIG_USER_LIBDEVMAPPER
ZFS_AC_CONFIG_USER_LIBUDEV
ZFS_AC_CONFIG_USER_FRAME_LARGER_THAN
ZFS_AC_CONFIG_USER_RUNSTATEDIR