FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/cmd/zed/zed.d/statechange-notify.sh

     #!/bin/sh
     # shellcheck disable=SC2154
     #
     # CDDL HEADER START
     #
     # The contents of this file are subject to the terms of the
     # Common Development and Distribution License Version 1.0 (CDDL-1.0).
     # You can obtain a copy of the license from the top-level file
     # "OPENSOLARIS.LICENSE" or at <http://opensource.org/licenses/CDDL-1.0>.
    # You may not use this file except in compliance with the license.
    #
    # CDDL HEADER END
    #
    
    #
    # Send notification in response to a fault induced statechange
    #
    # ZEVENT_SUBCLASS: 'statechange'
    # ZEVENT_VDEV_STATE_STR: 'DEGRADED', 'FAULTED', 'REMOVED', or 'UNAVAIL'
    #
    # Exit codes:
    #   0: notification sent
    #   1: notification failed
    #   2: notification not configured
    #   3: statechange not relevant
    #   4: statechange string missing (unexpected)
    
    [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
    . "${ZED_ZEDLET_DIR}/zed-functions.sh"
    
    [ -n "${ZEVENT_VDEV_STATE_STR}" ] || exit 4
    
    if [ "${ZEVENT_VDEV_STATE_STR}" != "FAULTED" ] \
            && [ "${ZEVENT_VDEV_STATE_STR}" != "DEGRADED" ] \
            && [ "${ZEVENT_VDEV_STATE_STR}" != "REMOVED" ] \
            && [ "${ZEVENT_VDEV_STATE_STR}" != "UNAVAIL" ]; then
        exit 3
    fi
    
    umask 077
    note_subject="ZFS device fault for pool ${ZEVENT_POOL} on $(hostname)"
    note_pathname="$(mktemp)"
    {
        if [ "${ZEVENT_VDEV_STATE_STR}" = "FAULTED" ] ; then
            echo "The number of I/O errors associated with a ZFS device exceeded"
            echo "acceptable levels. ZFS has marked the device as faulted."
        elif [ "${ZEVENT_VDEV_STATE_STR}" = "DEGRADED" ] ; then
            echo "The number of checksum errors associated with a ZFS device"
            echo "exceeded acceptable levels. ZFS has marked the device as"
            echo "degraded."
        else
            echo "ZFS has detected that a device was removed."
        fi
    
        echo
        echo " impact: Fault tolerance of the pool may be compromised."
        echo "    eid: ${ZEVENT_EID}"
        echo "  class: ${ZEVENT_SUBCLASS}"
        echo "  state: ${ZEVENT_VDEV_STATE_STR}"
        echo "   host: $(hostname)"
        echo "   time: ${ZEVENT_TIME_STRING}"
    
        [ -n "${ZEVENT_VDEV_TYPE}" ] && echo "  vtype: ${ZEVENT_VDEV_TYPE}"
        [ -n "${ZEVENT_VDEV_PATH}" ] && echo "  vpath: ${ZEVENT_VDEV_PATH}"
        [ -n "${ZEVENT_VDEV_PHYSPATH}" ] && echo "  vphys: ${ZEVENT_VDEV_PHYSPATH}"
        [ -n "${ZEVENT_VDEV_GUID}" ] && echo "  vguid: ${ZEVENT_VDEV_GUID}"
        [ -n "${ZEVENT_VDEV_DEVID}" ] && echo "  devid: ${ZEVENT_VDEV_DEVID}"
    
        echo "   pool: ${ZEVENT_POOL} (${ZEVENT_POOL_GUID})"
    
    } > "${note_pathname}"
    
    zed_notify "${note_subject}" "${note_pathname}"; rv=$?
    
    rm -f "${note_pathname}"
    exit "${rv}"

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