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authorLukasz Kasprzak <lukasz.kasprzak@pm.me>2026-04-14 22:32:43 +0200
committerLukasz Kasprzak <lukasz.kasprzak@pm.me>2026-04-14 22:32:43 +0200
commit83f7fe4b8402bab171d110703a1b1115efbc9b28 (patch)
tree19110702c7d740f6bd8ee4f5d2ebcb97442be237 /straper/db/public/zfs/etc-zfs/zed.d/deadman-slot_off.sh
parent51d43498b07dc97d795947964534f0903cd05db5 (diff)
downloadbin-83f7fe4b8402bab171d110703a1b1115efbc9b28.tar.gz
bin-83f7fe4b8402bab171d110703a1b1115efbc9b28.zip
cleaned up many scrits and deleted some that were of no use; renamed a lot
Diffstat (limited to 'straper/db/public/zfs/etc-zfs/zed.d/deadman-slot_off.sh')
-rwxr-xr-xstraper/db/public/zfs/etc-zfs/zed.d/deadman-slot_off.sh71
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diff --git a/straper/db/public/zfs/etc-zfs/zed.d/deadman-slot_off.sh b/straper/db/public/zfs/etc-zfs/zed.d/deadman-slot_off.sh
deleted file mode 100755
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--- a/straper/db/public/zfs/etc-zfs/zed.d/deadman-slot_off.sh
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@@ -1,71 +0,0 @@
-#!/bin/sh
-# shellcheck disable=SC3014,SC2154,SC2086,SC2034
-#
-# Turn off disk's enclosure slot if an I/O is hung triggering the deadman.
-#
-# It's possible for outstanding I/O to a misbehaving SCSI disk to neither
-# promptly complete or return an error. This can occur due to retry and
-# recovery actions taken by the SCSI layer, driver, or disk. When it occurs
-# the pool will be unresponsive even though there may be sufficient redundancy
-# configured to proceeded without this single disk.
-#
-# When a hung I/O is detected by the kmods it will be posted as a deadman
-# event. By default an I/O is considered to be hung after 5 minutes. This
-# value can be changed with the zfs_deadman_ziotime_ms module parameter.
-# If ZED_POWER_OFF_ENCLOSURE_SLOT_ON_DEADMAN is set the disk's enclosure
-# slot will be powered off causing the outstanding I/O to fail. The ZED
-# will then handle this like a normal disk failure and FAULT the vdev.
-#
-# We assume the user will be responsible for turning the slot back on
-# after replacing the disk.
-#
-# Note that this script 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.
-#
-# Exit codes:
-# 0: slot successfully powered off
-# 1: enclosure not available
-# 2: ZED_POWER_OFF_ENCLOSURE_SLOT_ON_DEADMAN disabled
-# 3: System not configured to wait on deadman
-# 4: The enclosure sysfs path passed from ZFS does not exist
-# 5: Enclosure slot didn't actually turn off after we told it to
-
-[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
-. "${ZED_ZEDLET_DIR}/zed-functions.sh"
-
-if [ ! -d /sys/class/enclosure ] ; then
- # No JBOD enclosure or NVMe slots
- exit 1
-fi
-
-if [ "${ZED_POWER_OFF_ENCLOSURE_SLOT_ON_DEADMAN}" != "1" ] ; then
- exit 2
-fi
-
-if [ "$ZEVENT_POOL_FAILMODE" != "wait" ] ; then
- exit 3
-fi
-
-if [ ! -f "$ZEVENT_VDEV_ENC_SYSFS_PATH/power_status" ] ; then
- exit 4
-fi
-
-# Turn off the slot and wait for sysfs to report that the slot is off.
-# It can take ~400ms on some enclosures and multiple retries may be needed.
-for i in $(seq 1 20) ; do
- echo "off" | tee "$ZEVENT_VDEV_ENC_SYSFS_PATH/power_status"
-
- for j in $(seq 1 5) ; do
- if [ "$(cat $ZEVENT_VDEV_ENC_SYSFS_PATH/power_status)" == "off" ] ; then
- break 2
- fi
- sleep 0.1
- done
-done
-
-if [ "$(cat $ZEVENT_VDEV_ENC_SYSFS_PATH/power_status)" != "off" ] ; then
- exit 5
-fi
-
-zed_log_msg "powered down slot $ZEVENT_VDEV_ENC_SYSFS_PATH for $ZEVENT_VDEV_PATH"