mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-17 10:01:01 +03:00
89 lines
2.4 KiB
Bash
89 lines
2.4 KiB
Bash
|
#!/bin/bash
|
||
|
|
#
|
||
|
|
# Turn off/on the VDEV's enclosure fault LEDs when the pool's state changes.
|
||
|
|
#
|
||
|
|
# Turn LED on if the VDEV becomes faulted/degraded, and turn it back off when
|
||
|
|
# it's healthy again. This requires that your enclosure be supported by the
|
||
|
|
# Linux SCSI enclosure services (ses) driver. The script will do nothing
|
||
|
|
# if you have no enclosure, or if your enclosure isn't supported.
|
||
|
|
#
|
||
|
|
# This script also requires ZFS to be built with libdevmapper support.
|
||
|
|
#
|
||
|
|
# Exit codes:
|
||
|
|
# 0: enclosure led successfully set
|
||
|
|
# 1: enclosure leds not not available
|
||
|
|
# 2: enclosure leds administratively disabled
|
||
|
|
# 3: ZED built without libdevmapper
|
||
|
|
|
||
|
|
[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
|
||
|
|
. "${ZED_ZEDLET_DIR}/zed-functions.sh"
|
||
|
|
|
||
|
|
# ZEVENT_VDEV_UPATH will not be present if ZFS is not built with libdevmapper
|
||
|
|
[ -n "${ZEVENT_VDEV_UPATH}" ] || exit 3
|
||
|
|
|
||
|
|
if [ "${ZED_USE_ENCLOSURE_LEDS}" != "1" ] ; then
|
||
|
|
exit 2
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ ! -d /sys/class/enclosure ] ; then
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Turn on/off enclosure LEDs
|
||
|
|
function led
|
||
|
|
{
|
||
|
|
name=$1
|
||
|
|
val=$2
|
||
|
|
|
||
|
|
# We want to check the current state first, since writing to the
|
||
|
|
# 'fault' entry always always causes a SES command, even if the
|
||
|
|
# current state is already what you want.
|
||
|
|
if [ -e /sys/block/$name/device/enclosure_device*/fault ] ; then
|
||
|
|
# We have to do some monkey business to deal with spaces in
|
||
|
|
# enclosure_device names. I've seen horrible things like this:
|
||
|
|
#
|
||
|
|
# '/sys/block/sdfw/device/enclosure_device:SLOT 43 41 /fault'
|
||
|
|
#
|
||
|
|
# ...so escape all spaces.
|
||
|
|
file=`ls /sys/block/$name/device/enclosure_device*/fault | sed 's/\s/\\ /g'`
|
||
|
|
|
||
|
|
current=`cat "$file"`
|
||
|
|
|
||
|
|
# On some enclosures if you write 1 to fault, and read it back,
|
||
|
|
# it will return 2. Treat all non-zero values as 1 for
|
||
|
|
# simplicity.
|
||
|
|
if [ "$current" != "0" ] ; then
|
||
|
|
current=1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$current" != "$val" ] ; then
|
||
|
|
# Set the value twice. I've seen enclosures that were
|
||
|
|
# flakey about setting it the first time.
|
||
|
|
echo $val > "$file"
|
||
|
|
echo $val > "$file"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
# Decide whether to turn on/off an LED based on the state
|
||
|
|
# Pass in path name and fault string ("ONLINE"/"FAULTED"/"DEGRADED"...etc)
|
||
|
|
function process {
|
||
|
|
# path=/dev/sda, fault=
|
||
|
|
|
||
|
|
path=$1
|
||
|
|
fault=$2
|
||
|
|
name=`basename $path`
|
||
|
|
|
||
|
|
if [ -z "$name" ] ; then
|
||
|
|
return
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$fault" == "FAULTED" ] || [ "$fault" == "DEGRADED" ] ; then
|
||
|
|
led $name 1
|
||
|
|
else
|
||
|
|
led $name 0
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
process "$ZEVENT_VDEV_UPATH" "$ZEVENT_VDEV_STATE_STR"
|