952 lines
27 KiB
Bash
Executable File
952 lines
27 KiB
Bash
Executable File
#!/bin/bash
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#
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# ZPOOL fault verification test script.
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#
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# The current suite of fault tests should not be thought of an exhaustive
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# list of failure modes. Rather it is simply an starting point which trys
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# to cover the bulk the of the 'easy' and hopefully common, failure modes.
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#
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# Additional tests should be added but the current suite as new interesting
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# failures modes are observed. Additional failure modes I'd like to see
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# tests for include, but are not limited too:
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#
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# * Slow but successful IO.
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# * SCSI sense codes generated as zevents.
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# * 4k sectors
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# * noise
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# * medium error
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# * recovered error
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#
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# The current infrastructure using the 'mdadm' faulty device and the
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# 'scsi_debug' simulated scsi devices. The idea is to inject the error
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# below the zfs stack to validate all the error paths. More targeted
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# failure testing should be added using the 'zinject' command line util.
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#
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# Requires the following packages:
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# * mdadm
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# * lsscsi
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# * sg3-utils
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#
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basedir="$(dirname $0)"
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SCRIPT_COMMON=common.sh
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if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
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. "${basedir}/${SCRIPT_COMMON}"
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else
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echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
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fi
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PROG=zfault.sh
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usage() {
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cat << EOF
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USAGE:
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$0 [hvc]
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DESCRIPTION:
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ZPOOL fault verification tests
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OPTIONS:
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-h Show this message
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-v Verbose
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-c Cleanup md+lo+file devices at start
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-t <#> Run listed tests
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-s <#> Skip listed tests
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EOF
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}
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while getopts 'hvct:s:?' OPTION; do
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case $OPTION in
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h)
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usage
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exit 1
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;;
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v)
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VERBOSE=1
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;;
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c)
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CLEANUP=1
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;;
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t)
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TESTS_RUN=($OPTARG)
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;;
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s)
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TESTS_SKIP=($OPTARG)
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;;
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?)
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usage
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exit
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;;
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esac
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done
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if [ $(id -u) != 0 ]; then
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die "Must run as root"
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fi
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# Perform pre-cleanup is requested
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if [ ${CLEANUP} ]; then
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cleanup_md_devices
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cleanup_loop_devices
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rm -f /tmp/zpool.cache.*
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fi
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# Check if we need to skip all md based tests.
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MD_PARTITIONABLE=0
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check_md_partitionable && MD_PARTITIONABLE=1
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if [ ${MD_PARTITIONABLE} -eq 0 ]; then
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echo "Skipping tests 1-7 which require partitionable md devices"
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fi
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# Check if we need to skip all the scsi_debug tests.
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SCSI_DEBUG=0
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${INFOMOD} scsi_debug &>/dev/null && SCSI_DEBUG=1
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if [ ${SCSI_DEBUG} -eq 0 ]; then
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echo "Skipping tests 8-9 which require the scsi_debug module"
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fi
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if [ ${MD_PARTITIONABLE} -eq 0 ] || [ ${SCSI_DEBUG} -eq 0 ]; then
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echo
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fi
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printf "%40s%s\t%s\t%s\t%s\t%s\n" "" "raid0" "raid10" "raidz" "raidz2" "raidz3"
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pass_nonewline() {
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echo -n -e "${COLOR_GREEN}Pass${COLOR_RESET}\t"
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}
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skip_nonewline() {
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echo -n -e "${COLOR_BROWN}Skip${COLOR_RESET}\t"
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}
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nth_zpool_vdev() {
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local POOL_NAME=$1
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local DEVICE_TYPE=$2
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local DEVICE_NTH=$3
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${ZPOOL} status ${POOL_NAME} | grep ${DEVICE_TYPE} ${TMP_STATUS} | \
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head -n${DEVICE_NTH} | tail -n1 | ${AWK} "{ print \$1 }"
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}
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vdev_status() {
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local POOL_NAME=$1
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local VDEV_NAME=$2
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${ZPOOL} status ${POOL_NAME} | ${AWK} "/${VDEV_NAME}/ { print \$2 }"
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}
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# Required format is x.yz[KMGTP]
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expand_numeric_suffix() {
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local VALUE=$1
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VALUE=`echo "${VALUE/%K/*1000}"`
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VALUE=`echo "${VALUE/%M/*1000000}"`
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VALUE=`echo "${VALUE/%G/*1000000000}"`
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VALUE=`echo "${VALUE/%T/*1000000000000}"`
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VALUE=`echo "${VALUE/%P/*1000000000000000}"`
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VALUE=`echo "${VALUE}" | bc | cut -d'.' -f1`
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echo "${VALUE}"
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}
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vdev_read_errors() {
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local POOL_NAME=$1
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local VDEV_NAME=$2
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local VDEV_ERRORS=`${ZPOOL} status ${POOL_NAME} |
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${AWK} "/${VDEV_NAME}/ { print \\$3 }"`
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expand_numeric_suffix ${VDEV_ERRORS}
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}
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vdev_write_errors() {
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local POOL_NAME=$1
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local VDEV_NAME=$2
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local VDEV_ERRORS=`${ZPOOL} status ${POOL_NAME} |
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${AWK} "/${VDEV_NAME}/ { print \\$4 }"`
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expand_numeric_suffix ${VDEV_ERRORS}
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}
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vdev_cksum_errors() {
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local POOL_NAME=$1
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local VDEV_NAME=$2
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local VDEV_ERRORS=`${ZPOOL} status ${POOL_NAME} |
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${AWK} "/${VDEV_NAME}/ { print \\$5 }"`
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expand_numeric_suffix ${VDEV_ERRORS}
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}
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zpool_state() {
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local POOL_NAME=$1
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${ZPOOL} status ${POOL_NAME} | ${AWK} "/state/ { print \$2; exit }"
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}
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zpool_event() {
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local EVENT_NAME=$1
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local EVENT_KEY=$2
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SCRIPT1="BEGIN {RS=\"\"; FS=\"\n\"} /${EVENT_NAME}/ { print \$0; exit }"
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SCRIPT2="BEGIN {FS=\"=\"} /${EVENT_KEY}/ { print \$2; exit }"
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${ZPOOL} events -vH | ${AWK} "${SCRIPT1}" | ${AWK} "${SCRIPT2}"
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}
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zpool_scan_errors() {
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local POOL_NAME=$1
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${ZPOOL} status ${POOL_NAME} | ${AWK} "/scan: scrub/ { print \$8 }"
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${ZPOOL} status ${POOL_NAME} | ${AWK} "/scan: resilver/ { print \$7 }"
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}
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pattern_create() {
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local PATTERN_BLOCK_SIZE=$1
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local PATTERN_BLOCK_COUNT=$2
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local PATTERN_NAME=`mktemp -p /tmp zpool.pattern.XXXXXXXX`
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echo ${PATTERN_NAME}
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dd if=/dev/urandom of=${PATTERN_NAME} bs=${PATTERN_BLOCK_SIZE} \
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count=${PATTERN_BLOCK_COUNT} &>/dev/null
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return $?
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}
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pattern_write() {
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local PATTERN_NAME=$1
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local PATTERN_BLOCK_SIZE=$2
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local PATTERN_BLOCK_COUNT=$3
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local DEVICE_NAME=$4
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dd if=${PATTERN_NAME} of=${DEVICE_NAME} bs=${PATTERN_BLOCK_SIZE} \
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count=${PATTERN_BLOCK_COUNT} oflag=direct &>/dev/null
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return $?
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}
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pattern_write_bg() {
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local PATTERN_NAME=$1
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local PATTERN_BLOCK_SIZE=$2
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local PATTERN_BLOCK_COUNT=$3
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local DEVICE_NAME=$4
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dd if=${PATTERN_NAME} of=${DEVICE_NAME} bs=${PATTERN_BLOCK_SIZE} \
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count=${PATTERN_BLOCK_COUNT} oflag=direct &>/dev/null &
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return $?
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}
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pattern_verify() {
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local PATTERN_NAME=$1
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local PATTERN_BLOCK_SIZE=$2
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local PATTERN_BLOCK_COUNT=$3
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local DEVICE_NAME=$4
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local DEVICE_FILE=`mktemp -p /tmp zpool.pattern.XXXXXXXX`
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dd if=${DEVICE_NAME} of=${DEVICE_FILE} bs=${PATTERN_BLOCK_SIZE} \
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count=${PATTERN_BLOCK_COUNT} iflag=direct &>/dev/null
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cmp -s ${PATTERN_NAME} ${DEVICE_FILE}
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RC=$?
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rm -f ${DEVICE_FILE}
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return ${RC}
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}
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pattern_remove() {
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local PATTERN_NAME=$1
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rm -f ${PATTERN_NAME}
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return $?
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}
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fault_set_md() {
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local VDEV_FAULTY=$1
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local FAULT_TYPE=$2
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${MDADM} /dev/${VDEV_FAULTY} --grow --level=faulty \
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--layout=${FAULT_TYPE} >/dev/null
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return $?
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}
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fault_clear_md() {
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local VDEV_FAULTY=$1
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# Clear all failure injection.
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${MDADM} /dev/${VDEV_FAULTY} --grow --level=faulty \
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--layout=clear >/dev/null || return $?
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${MDADM} /dev/${VDEV_FAULTY} --grow --level=faulty \
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--layout=flush >/dev/null || return $?
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return $?
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}
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fault_set_sd() {
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local OPTS=$1
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local NTH=$2
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echo ${OPTS} >/sys/bus/pseudo/drivers/scsi_debug/opts
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echo ${NTH} >/sys/bus/pseudo/drivers/scsi_debug/every_nth
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}
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fault_clear_sd() {
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echo 0 >/sys/bus/pseudo/drivers/scsi_debug/every_nth
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echo 0 >/sys/bus/pseudo/drivers/scsi_debug/opts
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}
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test_setup() {
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local POOL_NAME=$1
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local POOL_CONFIG=$2
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local ZVOL_NAME=$3
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local TMP_CACHE=$4
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${ZFS_SH} zfs="spa_config_path=${TMP_CACHE}" || fail 1
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${ZPOOL_CREATE_SH} -p ${POOL_NAME} -c ${POOL_CONFIG} || fail 2
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${ZFS} create -V 64M ${POOL_NAME}/${ZVOL_NAME} || fail 3
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# Trigger udev and re-read the partition table to ensure all of
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# this IO is out of the way before we begin injecting failures.
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udev_trigger || fail 4
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${BLOCKDEV} --rereadpt /dev/${POOL_NAME}/${ZVOL_NAME} || fail 5
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}
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test_cleanup() {
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local POOL_NAME=$1
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local POOL_CONFIG=$2
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local ZVOL_NAME=$3
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local TMP_CACHE=$4
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${ZFS} destroy ${POOL_NAME}/${ZVOL_NAME} || fail 101
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${ZPOOL_CREATE_SH} -p ${POOL_NAME} -c ${POOL_CONFIG} -d || fail 102
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${ZFS_SH} -u || fail 103
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rm -f ${TMP_CACHE} || fail 104
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}
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test_write_soft() {
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local POOL_NAME=$1
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local POOL_CONFIG=$2
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local POOL_REDUNDANT=$3
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local ZVOL_NAME="zvol"
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local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
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if [ ${MD_PARTITIONABLE} -eq 0 ]; then
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skip_nonewline
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return
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fi
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local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
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test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
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# Set soft write failure for first vdev device.
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local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md 1`
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fault_set_md ${VDEV_FAULTY} write-transient
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# The application must not observe an error.
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local TMP_PATTERN=`pattern_create 1M 8` || fail 11
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pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
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fault_clear_md ${VDEV_FAULTY}
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# Soft errors will not be logged to 'zpool status'
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local WRITE_ERRORS=`vdev_write_errors ${POOL_NAME} ${VDEV_FAULTY}`
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test ${WRITE_ERRORS} -eq 0 || fail 13
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# Soft errors will still generate an EIO (5) event.
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test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 14
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# Verify the known pattern.
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pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 15
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pattern_remove ${TMP_PATTERN} || fail 16
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test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
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pass_nonewline
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}
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# Soft write error.
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test_1() {
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test_write_soft tank lo-faulty-raid0 0
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test_write_soft tank lo-faulty-raid10 1
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test_write_soft tank lo-faulty-raidz 1
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test_write_soft tank lo-faulty-raidz2 1
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test_write_soft tank lo-faulty-raidz3 1
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echo
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}
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run_test 1 "soft write error"
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test_write_hard() {
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local POOL_NAME=$1
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local POOL_CONFIG=$2
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local POOL_REDUNDANT=$3
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local ZVOL_NAME="zvol"
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local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
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if [ ${MD_PARTITIONABLE} -eq 0 ]; then
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skip_nonewline
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return
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fi
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local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
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test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
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# Set hard write failure for first vdev device.
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local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md 1`
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fault_set_md ${VDEV_FAULTY} write-persistent
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# The application must not observe an error.
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local TMP_PATTERN=`pattern_create 1M 8` || fail 11
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pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
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fault_clear_md ${VDEV_FAULTY}
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local WRITE_ERRORS=`vdev_write_errors ${POOL_NAME} ${VDEV_FAULTY}`
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if [ ${POOL_REDUNDANT} -eq 1 ]; then
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# For redundant configurations hard errors will not be
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# logged to 'zpool status' but will generate EIO events.
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test ${WRITE_ERRORS} -eq 0 || fail 21
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test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 22
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else
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# For non-redundant configurations hard errors will be
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# logged to 'zpool status' and generate EIO events. They
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# will also trigger a scrub of the impacted sectors.
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sleep 10
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test ${WRITE_ERRORS} -gt 0 || fail 31
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test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 32
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test `zpool_event "zfs.resilver.start" "ena"` != "" || fail 33
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test `zpool_event "zfs.resilver.finish" "ena"` != "" || fail 34
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test `zpool_scan_errors ${POOL_NAME}` -eq 0 || fail 35
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fi
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# Verify the known pattern.
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pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 41
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pattern_remove ${TMP_PATTERN} || fail 42
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test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
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pass_nonewline
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}
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# Hard write error.
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test_2() {
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test_write_hard tank lo-faulty-raid0 0
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test_write_hard tank lo-faulty-raid10 1
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test_write_hard tank lo-faulty-raidz 1
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test_write_hard tank lo-faulty-raidz2 1
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test_write_hard tank lo-faulty-raidz3 1
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echo
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}
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run_test 2 "hard write error"
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test_write_all() {
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local POOL_NAME=$1
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local POOL_CONFIG=$2
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local POOL_REDUNDANT=$3
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local ZVOL_NAME="zvol"
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local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
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if [ ${MD_PARTITIONABLE} -eq 0 ]; then
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skip_nonewline
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return
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fi
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local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
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test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
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# Set all write failures for first vdev device.
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local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md 1`
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fault_set_md ${VDEV_FAULTY} write-all
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local TMP_PATTERN=`pattern_create 1M 8` || fail 11
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if [ ${POOL_REDUNDANT} -eq 1 ]; then
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# The application must not observe an error.
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pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
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else
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# The application is expected to hang in the background until
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# the faulty device is repaired and 'zpool clear' is run.
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pattern_write_bg ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 13
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sleep 10
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fi
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fault_clear_md ${VDEV_FAULTY}
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local WRITE_ERRORS=`vdev_write_errors ${POOL_NAME} ${VDEV_FAULTY}`
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local VDEV_STATUS=`vdev_status ${POOL_NAME} ${VDEV_FAULTY}`
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local POOL_STATE=`zpool_state ${POOL_NAME}`
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# For all configurations write errors are logged to 'zpool status',
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# and EIO events are generated. However, only a redundant config
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# will cause the vdev to be FAULTED and pool DEGRADED. In a non-
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# redundant config the IO will hang until 'zpool clear' is run.
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test ${WRITE_ERRORS} -gt 0 || fail 14
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test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 15
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if [ ${POOL_REDUNDANT} -eq 1 ]; then
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test "${VDEV_STATUS}" = "FAULTED" || fail 21
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test "${POOL_STATE}" = "DEGRADED" || fail 22
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else
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BLOCKED=`ps a | grep "${ZVOL_DEVICE}" | grep -c -v "grep"`
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${ZPOOL} clear ${POOL_NAME} || fail 31
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test ${BLOCKED} -eq 1 || fail 32
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wait
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fi
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# Verify the known pattern.
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pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 41
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pattern_remove ${TMP_PATTERN} || fail 42
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test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
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pass_nonewline
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}
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# All write errors.
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test_3() {
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test_write_all tank lo-faulty-raid0 0
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test_write_all tank lo-faulty-raid10 1
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test_write_all tank lo-faulty-raidz 1
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test_write_all tank lo-faulty-raidz2 1
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test_write_all tank lo-faulty-raidz3 1
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echo
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}
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run_test 3 "all write errors"
|
|
|
|
test_read_soft() {
|
|
local POOL_NAME=$1
|
|
local POOL_CONFIG=$2
|
|
local POOL_REDUNDANT=$3
|
|
local ZVOL_NAME="zvol"
|
|
local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
|
|
local READ_ERRORS=0
|
|
|
|
if [ ${MD_PARTITIONABLE} -eq 0 ]; then
|
|
skip_nonewline
|
|
return
|
|
fi
|
|
|
|
local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
|
|
test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
|
|
# Create a pattern to be verified during a read error.
|
|
local TMP_PATTERN=`pattern_create 1M 8` || fail 11
|
|
pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
|
|
|
|
# Set soft read failure for all the vdevs to ensure we hit it.
|
|
for (( i=1; i<=4; i++ )); do
|
|
fault_set_md `nth_zpool_vdev ${POOL_NAME} md $i` read-transient
|
|
done
|
|
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 13
|
|
pattern_remove ${TMP_PATTERN} || fail 14
|
|
|
|
# Clear all failure injection and sum read errors.
|
|
for (( i=1; i<=4; i++ )); do
|
|
local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md $i`
|
|
local VDEV_ERRORS=`vdev_read_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
let READ_ERRORS=${READ_ERRORS}+${VDEV_ERRORS}
|
|
fault_clear_md ${VDEV_FAULTY}
|
|
done
|
|
|
|
# Soft errors will not be logged to 'zpool status'.
|
|
test ${READ_ERRORS} -eq 0 || fail 15
|
|
|
|
# Soft errors will still generate an EIO (5) event.
|
|
test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 16
|
|
|
|
test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
pass_nonewline
|
|
}
|
|
|
|
# Soft read error.
|
|
test_4() {
|
|
test_read_soft tank lo-faulty-raid0 0
|
|
test_read_soft tank lo-faulty-raid10 1
|
|
test_read_soft tank lo-faulty-raidz 1
|
|
test_read_soft tank lo-faulty-raidz2 1
|
|
test_read_soft tank lo-faulty-raidz3 1
|
|
echo
|
|
}
|
|
run_test 4 "soft read error"
|
|
|
|
test_read_hard() {
|
|
local POOL_NAME=$1
|
|
local POOL_CONFIG=$2
|
|
local POOL_REDUNDANT=$3
|
|
local ZVOL_NAME="zvol"
|
|
local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
|
|
local READ_ERRORS=0
|
|
|
|
if [ ${MD_PARTITIONABLE} -eq 0 ]; then
|
|
skip_nonewline
|
|
return
|
|
fi
|
|
|
|
local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
|
|
test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
|
|
# Create a pattern to be verified during a read error.
|
|
local TMP_PATTERN=`pattern_create 1M 8` || fail 11
|
|
pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
|
|
|
|
# Set hard read failure for the fourth vdev.
|
|
local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md 4`
|
|
fault_set_md ${VDEV_FAULTY} read-persistent
|
|
|
|
# For a redundant pool there must be no IO error, for a non-redundant
|
|
# pool we expect permanent damage and an IO error during verify, unless
|
|
# we get exceptionally lucky and have just damaged redundant metadata.
|
|
if [ ${POOL_REDUNDANT} -eq 1 ]; then
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 21
|
|
local READ_ERRORS=`vdev_read_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${READ_ERRORS} -eq 0 || fail 22
|
|
else
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE}
|
|
${ZPOOL} scrub ${POOL_NAME} || fail 32
|
|
local READ_ERRORS=`vdev_read_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${READ_ERRORS} -gt 0 || fail 33
|
|
${ZPOOL} status -v ${POOL_NAME} | \
|
|
grep -A8 "Permanent errors" | \
|
|
grep -q "${POOL_NAME}" || fail 34
|
|
fi
|
|
pattern_remove ${TMP_PATTERN} || fail 41
|
|
|
|
# Clear all failure injection and sum read errors.
|
|
fault_clear_md ${VDEV_FAULTY}
|
|
|
|
# Hard errors will generate an EIO (5) event.
|
|
test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 42
|
|
|
|
test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
pass_nonewline
|
|
}
|
|
|
|
# Hard read error.
|
|
test_5() {
|
|
test_read_hard tank lo-faulty-raid0 0
|
|
test_read_hard tank lo-faulty-raid10 1
|
|
test_read_hard tank lo-faulty-raidz 1
|
|
test_read_hard tank lo-faulty-raidz2 1
|
|
test_read_hard tank lo-faulty-raidz3 1
|
|
echo
|
|
}
|
|
run_test 5 "hard read error"
|
|
|
|
# Fixable read error.
|
|
test_read_fixable() {
|
|
local POOL_NAME=$1
|
|
local POOL_CONFIG=$2
|
|
local POOL_REDUNDANT=$3
|
|
local ZVOL_NAME="zvol"
|
|
local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
|
|
local READ_ERRORS=0
|
|
|
|
if [ ${MD_PARTITIONABLE} -eq 0 ]; then
|
|
skip_nonewline
|
|
return
|
|
fi
|
|
|
|
local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
|
|
test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
|
|
# Create a pattern to be verified during a read error.
|
|
local TMP_PATTERN=`pattern_create 1M 8` || fail 11
|
|
pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
|
|
|
|
# Set hard read failure for the fourth vdev.
|
|
local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md 4`
|
|
fault_set_md ${VDEV_FAULTY} read-fixable
|
|
|
|
# For a redundant pool there must be no IO error, for a non-redundant
|
|
# pool we expect permanent damage and an IO error during verify, unless
|
|
# we get exceptionally lucky and have just damaged redundant metadata.
|
|
if [ ${POOL_REDUNDANT} -eq 1 ]; then
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 21
|
|
local READ_ERRORS=`vdev_read_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${READ_ERRORS} -eq 0 || fail 22
|
|
else
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE}
|
|
${ZPOOL} scrub ${POOL_NAME} || fail 32
|
|
local READ_ERRORS=`vdev_read_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${READ_ERRORS} -gt 0 || fail 33
|
|
${ZPOOL} status -v ${POOL_NAME} | \
|
|
grep -A8 "Permanent errors" | \
|
|
grep -q "${POOL_NAME}" || fail 34
|
|
fi
|
|
pattern_remove ${TMP_PATTERN} || fail 41
|
|
|
|
# Clear all failure injection and sum read errors.
|
|
fault_clear_md ${VDEV_FAULTY}
|
|
|
|
# Hard errors will generate an EIO (5) event.
|
|
test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 42
|
|
|
|
test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
pass_nonewline
|
|
}
|
|
|
|
# Read errors fixable with a write.
|
|
test_6() {
|
|
test_read_fixable tank lo-faulty-raid0 0
|
|
test_read_fixable tank lo-faulty-raid10 1
|
|
test_read_fixable tank lo-faulty-raidz 1
|
|
test_read_fixable tank lo-faulty-raidz2 1
|
|
test_read_fixable tank lo-faulty-raidz3 1
|
|
echo
|
|
}
|
|
run_test 6 "fixable read error"
|
|
|
|
test_cksum() {
|
|
local POOL_NAME=$1
|
|
local POOL_CONFIG=$2
|
|
local POOL_REDUNDANT=$3
|
|
local VDEV_DAMAGE="$4"
|
|
local ZVOL_NAME="zvol"
|
|
local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
|
|
|
|
if [ ${MD_PARTITIONABLE} -eq 0 ]; then
|
|
skip_nonewline
|
|
return
|
|
fi
|
|
|
|
local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
|
|
test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
|
|
# Create a pattern to be verified.
|
|
local TMP_PATTERN=`pattern_create 1M 8` || fail 11
|
|
pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
|
|
|
|
# Verify the pattern and that no vdev has cksum errors.
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 13
|
|
for (( i=1; i<4; i++ )); do
|
|
VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md ${i}`
|
|
CKSUM_ERRORS=`vdev_cksum_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${CKSUM_ERRORS} -eq 0 || fail 14
|
|
done
|
|
|
|
# Corrupt the bulk of a vdev with random garbage, we damage as many
|
|
# vdevs as we have levels of redundancy. For example for a raidz3
|
|
# configuration we can trash 3 vdevs and still expect correct data.
|
|
# This improves the odds that we read one of the damaged vdevs.
|
|
for VDEV in ${VDEV_DAMAGE}; do
|
|
VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} md $VDEV`
|
|
pattern_write /dev/urandom 1M 64 /dev/${VDEV_FAULTY}p1
|
|
done
|
|
|
|
# Verify the pattern is still correct. For non-redundant pools
|
|
# expect failure and for redundant pools success due to resilvering.
|
|
if [ ${POOL_REDUNDANT} -eq 1 ]; then
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 16
|
|
else
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} && fail 17
|
|
fi
|
|
|
|
CKSUM_ERRORS=`vdev_cksum_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${CKSUM_ERRORS} -gt 0 || fail 18
|
|
STATUS=`vdev_status ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test "${STATUS}" = "ONLINE" || fail 19
|
|
|
|
# The checksum errors must be logged as an event.
|
|
local CKSUM_ERRORS=`zpool_event "zfs.checksum" "zio_err"`
|
|
test ${CKSUM_ERRORS} = "0x34" || test ${CKSUM_ERRORS} = "0x0" || fail 20
|
|
|
|
# Verify permant errors for non-redundant pools, and for redundant
|
|
# pools trigger a scrub and check that all checksums have been fixed.
|
|
if [ ${POOL_REDUNDANT} -eq 1 ]; then
|
|
# Scrub the checksum errors and clear the faults.
|
|
${ZPOOL} scrub ${POOL_NAME} || fail 21
|
|
sleep 3
|
|
${ZPOOL} clear ${POOL_NAME} || fail 22
|
|
|
|
# Re-verify the pattern for fixed checksums.
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 23
|
|
CKSUM_ERRORS=`vdev_cksum_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${CKSUM_ERRORS} -eq 0 || fail 24
|
|
|
|
# Re-verify the entire pool for fixed checksums.
|
|
${ZPOOL} scrub ${POOL_NAME} || fail 25
|
|
CKSUM_ERRORS=`vdev_cksum_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${CKSUM_ERRORS} -eq 0 || fail 26
|
|
else
|
|
${ZPOOL} status -v ${POOL_NAME} | \
|
|
grep -A8 "Permanent errors" | \
|
|
grep -q "${POOL_NAME}/${ZVOL_NAME}" || fail 31
|
|
${ZPOOL} clear ${POOL_NAME} || fail 32
|
|
fi
|
|
pattern_remove ${TMP_PATTERN} || fail 41
|
|
|
|
test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
pass_nonewline
|
|
}
|
|
|
|
# Silent data corruption
|
|
test_7() {
|
|
test_cksum tank lo-faulty-raid0 0 "1"
|
|
test_cksum tank lo-faulty-raid10 1 "1 3"
|
|
test_cksum tank lo-faulty-raidz 1 "4"
|
|
test_cksum tank lo-faulty-raidz2 1 "3 4"
|
|
test_cksum tank lo-faulty-raidz3 1 "2 3 4"
|
|
echo
|
|
}
|
|
run_test 7 "silent data corruption"
|
|
|
|
# Soft write timeout at the scsi device layer.
|
|
test_write_timeout_soft() {
|
|
local POOL_NAME=$1
|
|
local POOL_CONFIG=$2
|
|
local POOL_REDUNDANT=$3
|
|
local POOL_NTH=$4
|
|
local ZVOL_NAME="zvol"
|
|
local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
|
|
|
|
if [ ${SCSI_DEBUG} -eq 0 ]; then
|
|
skip_nonewline
|
|
return
|
|
fi
|
|
|
|
local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
|
|
test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
|
|
# Set timeout(0x4) for every nth command.
|
|
fault_set_sd 4 ${POOL_NTH}
|
|
|
|
# The application must not observe an error.
|
|
local TMP_PATTERN=`pattern_create 1M 8` || fail 11
|
|
pattern_write ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 12
|
|
fault_clear_sd
|
|
|
|
# Intermittent write timeouts even with FAILFAST set may not cause
|
|
# an EIO (5) event. This is because how FAILFAST is handled depends
|
|
# a log on the low level driver and the exact nature of the failure.
|
|
# We will however see a 'zfs.delay' event logged due to the timeout.
|
|
VDEV_DELAY=`zpool_event "zfs.delay" "zio_delay"`
|
|
test `printf "%d" ${VDEV_DELAY}` -ge 30000 || fail 13
|
|
|
|
# Verify the known pattern.
|
|
pattern_verify ${TMP_PATTERN} 1M 8 ${ZVOL_DEVICE} || fail 14
|
|
pattern_remove ${TMP_PATTERN} || fail 15
|
|
|
|
test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
pass_nonewline
|
|
}
|
|
|
|
test_8() {
|
|
test_write_timeout_soft tank scsi_debug-raid0 0 50
|
|
test_write_timeout_soft tank scsi_debug-raid10 1 100
|
|
test_write_timeout_soft tank scsi_debug-raidz 1 75
|
|
test_write_timeout_soft tank scsi_debug-raidz2 1 150
|
|
test_write_timeout_soft tank scsi_debug-raidz3 1 300
|
|
echo
|
|
}
|
|
run_test 8 "soft write timeout"
|
|
|
|
# Persistent write timeout at the scsi device layer.
|
|
test_write_timeout_hard() {
|
|
local POOL_NAME=$1
|
|
local POOL_CONFIG=$2
|
|
local POOL_REDUNDANT=$3
|
|
local POOL_NTH=$4
|
|
local ZVOL_NAME="zvol"
|
|
local ZVOL_DEVICE="/dev/${POOL_NAME}/${ZVOL_NAME}"
|
|
local RESCAN=1
|
|
|
|
if [ ${SCSI_DEBUG} -eq 0 ]; then
|
|
skip_nonewline
|
|
return
|
|
fi
|
|
|
|
local TMP_CACHE=`mktemp -p /tmp zpool.cache.XXXXXXXX`
|
|
test_setup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
|
|
local TMP_PATTERN1=`pattern_create 1M 8`
|
|
local TMP_PATTERN2=`pattern_create 1M 8`
|
|
local TMP_PATTERN3=`pattern_create 1M 8`
|
|
|
|
# Create three partitions each one gets a unique pattern. The first
|
|
# pattern is written before the failure, the second pattern during
|
|
# the failure, and the third pattern while the vdev is degraded.
|
|
# All three patterns are verified while the vdev is degraded and
|
|
# then again once it is brought back online.
|
|
${PARTED} -s ${ZVOL_DEVICE} mklabel gpt || fail 11
|
|
${PARTED} -s ${ZVOL_DEVICE} mkpart primary 1M 16M || fail 12
|
|
${PARTED} -s ${ZVOL_DEVICE} mkpart primary 16M 32M || fail 13
|
|
${PARTED} -s ${ZVOL_DEVICE} mkpart primary 32M 48M || fail 14
|
|
|
|
wait_udev ${ZVOL_DEVICE}1 30
|
|
wait_udev ${ZVOL_DEVICE}2 30
|
|
wait_udev ${ZVOL_DEVICE}3 30
|
|
|
|
# Before the failure.
|
|
pattern_write ${TMP_PATTERN1} 1M 8 ${ZVOL_DEVICE}1 || fail 15
|
|
|
|
# Get the faulty vdev name.
|
|
local VDEV_FAULTY=`nth_zpool_vdev ${POOL_NAME} sd 1`
|
|
|
|
# Set timeout(0x4) for every nth command.
|
|
fault_set_sd 4 ${POOL_NTH}
|
|
|
|
# During the failure.
|
|
pattern_write ${TMP_PATTERN2} 1M 8 ${ZVOL_DEVICE}2 || fail 21
|
|
|
|
# Expect write errors to be logged to 'zpool status'
|
|
local WRITE_ERRORS=`vdev_write_errors ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test ${WRITE_ERRORS} -gt 0 || fail 22
|
|
|
|
local VDEV_STATUS=`vdev_status ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test "${VDEV_STATUS}" = "UNAVAIL" || fail 23
|
|
|
|
# Clear the error and remove it from /dev/.
|
|
fault_clear_sd
|
|
rm -f /dev/${VDEV_FAULTY}[0-9]
|
|
|
|
# Verify the first two patterns and write out the third.
|
|
pattern_write ${TMP_PATTERN3} 1M 8 ${ZVOL_DEVICE}3 || fail 31
|
|
pattern_verify ${TMP_PATTERN1} 1M 8 ${ZVOL_DEVICE}1 || fail 32
|
|
pattern_verify ${TMP_PATTERN2} 1M 8 ${ZVOL_DEVICE}2 || fail 33
|
|
pattern_verify ${TMP_PATTERN3} 1M 8 ${ZVOL_DEVICE}3 || fail 34
|
|
|
|
# Bring the device back online by rescanning for it. It must appear
|
|
# in lsscsi and be available to dd before allowing ZFS to bring it
|
|
# online. This is not required but provides additional sanity.
|
|
while [ ${RESCAN} -eq 1 ]; do
|
|
scsi_rescan
|
|
wait_udev /dev/${VDEV_FAULTY} 30
|
|
|
|
if [ `${LSSCSI} | grep -c "/dev/${VDEV_FAULTY}"` -eq 0 ]; then
|
|
continue
|
|
fi
|
|
|
|
dd if=/dev/${VDEV_FAULTY} of=/dev/null bs=8M count=1 &>/dev/null
|
|
if [ $? -ne 0 ]; then
|
|
continue
|
|
fi
|
|
|
|
RESCAN=0
|
|
done
|
|
|
|
# Bring the device back online. We expect it to be automatically
|
|
# resilvered without error and we should see minimally the zfs.io,
|
|
# zfs.statechange (VDEV_STATE_HEALTHY (0x7)), and zfs.resilver.*
|
|
# events posted.
|
|
${ZPOOL} online ${POOL_NAME} ${VDEV_FAULTY}1 || fail 51
|
|
sleep 3
|
|
test `zpool_event "zfs.io" "zio_err"` = "0x5" || fail 52
|
|
test `zpool_event "zfs.statechange" "vdev_state"` = "0x7" || fail 53
|
|
test `zpool_event "zfs.resilver.start" "ena"` != "" || fail 54
|
|
test `zpool_event "zfs.resilver.finish" "ena"` != "" || fail 55
|
|
test `zpool_scan_errors ${POOL_NAME}` -eq 0 || fail 56
|
|
|
|
local VDEV_STATUS=`vdev_status ${POOL_NAME} ${VDEV_FAULTY}`
|
|
test "${VDEV_STATUS}" = "ONLINE" || fail 57
|
|
|
|
# Verify the known pattern.
|
|
pattern_verify ${TMP_PATTERN1} 1M 8 ${ZVOL_DEVICE}1 || fail 61
|
|
pattern_verify ${TMP_PATTERN2} 1M 8 ${ZVOL_DEVICE}2 || fail 62
|
|
pattern_verify ${TMP_PATTERN3} 1M 8 ${ZVOL_DEVICE}3 || fail 63
|
|
pattern_remove ${TMP_PATTERN1} || fail 64
|
|
pattern_remove ${TMP_PATTERN2} || fail 65
|
|
pattern_remove ${TMP_PATTERN3} || fail 66
|
|
|
|
test_cleanup ${POOL_NAME} ${POOL_CONFIG} ${ZVOL_NAME} ${TMP_CACHE}
|
|
pass_nonewline
|
|
}
|
|
|
|
test_9() {
|
|
skip_nonewline # Skip non-redundant config
|
|
test_write_timeout_hard tank scsi_debug-raid10 1 -50
|
|
test_write_timeout_hard tank scsi_debug-raidz 1 -50
|
|
test_write_timeout_hard tank scsi_debug-raidz2 1 -50
|
|
test_write_timeout_hard tank scsi_debug-raidz3 1 -50
|
|
echo
|
|
}
|
|
run_test 9 "hard write timeout"
|
|
|
|
exit 0
|