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#!/bin/sh
#
# Show SMART stats
#
helpstr="
smart: Show SMART temperature and error stats (specific to drive type)
smartx: Show SMART extended drive stats (specific to drive type).
temp: Show SMART drive temperature in celsius (all drives).
health: Show reported SMART status (all drives).
r_proc: Show SMART read GBytes processed over drive lifetime (SAS).
w_proc: Show SMART write GBytes processed over drive lifetime (SAS).
r_ucor: Show SMART read uncorrectable errors (SAS).
w_ucor: Show SMART write uncorrectable errors (SAS).
nonmed: Show SMART non-medium errors (SAS).
defect: Show SMART grown defect list (SAS).
hours_on: Show number of hours drive powered on (all drives).
realloc: Show SMART reallocated sectors count (ATA).
rep_ucor: Show SMART reported uncorrectable count (ATA).
cmd_to: Show SMART command timeout count (ATA).
pend_sec: Show SMART current pending sector count (ATA).
off_ucor: Show SMART offline uncorrectable errors (ATA).
ata_err: Show SMART ATA errors (ATA).
pwr_cyc: Show SMART power cycle count (ATA).
serial: Show disk serial number.
nvme_err: Show SMART NVMe errors (NVMe).
smart_test: Show SMART self-test results summary.
test_type: Show SMART self-test type (short, long... ).
test_status: Show SMART self-test status.
test_progress: Show SMART self-test percentage done.
test_ended: Show when the last SMART self-test ended (if supported).
"
# Hack for developer testing
#
# If you set $samples to a directory containing smartctl output text files,
# we will use them instead of running smartctl on the vdevs. This can be
# useful if you want to test a bunch of different smartctl outputs. Also, if
# $samples is set, and additional 'file' column is added to the zpool output
# showing the filename.
samples=
# get_filename_from_dir DIR
#
# Look in directory DIR and return a filename from it. The filename returned
# is chosen quasi-sequentially (based off our PID). This allows us to return
# a different filename every time this script is invoked (which we do for each
# vdev), without having to maintain state.
get_filename_from_dir()
{
dir=$1
pid="$$"
num_files=$(find "$dir" -maxdepth 1 -type f | wc -l)
mod=$((pid % num_files))
i=0
find "$dir" -type f -printf "%f\n" | while read -r file ; do
if [ "$mod" = "$i" ] ; then
echo "$file"
break
fi
i=$((i+1))
done
}
script=$(basename "$0")
if [ "$1" = "-h" ] ; then
echo "$helpstr" | grep "$script:" | tr -s '\t' | cut -f 2-
exit
fi
smartctl_path=$(command -v smartctl)
# shellcheck disable=SC2015
if [ -b "$VDEV_UPATH" ] && [ -x "$smartctl_path" ] || [ -n "$samples" ] ; then
if [ -n "$samples" ] ; then
# cat a smartctl output text file instead of running smartctl
# on a vdev (only used for developer testing).
file=$(get_filename_from_dir "$samples")
echo "file=$file"
raw_out=$(cat "$samples/$file")
else
raw_out=$(eval "sudo $smartctl_path -a $VDEV_UPATH")
fi
# What kind of drive are we? Look for the right line in smartctl:
#
# SAS:
# Transport protocol: SAS
#
# SATA:
# ATA Version is: 8
#
# NVMe:
# SMART/Health Information (NVMe Log 0xnn, NSID 0xnn)
#
out=$(echo "$raw_out" | awk '
# SAS specific
/read:/{print "rrd="$4"\nr_cor="$5"\nr_proc="$7"\nr_ucor="$8}
/write:/{print "rwr="$4"\nw_cor="$5"\nw_proc="$7"\nw_ucor="$8}
/Non-medium error count/{print "nonmed="$4}
/Elements in grown defect list/{print "defect="$6}
# SAS common
/SAS/{type="sas"}
/Drive Temperature:/{print "temp="$4}
# Status can be a long string, substitute spaces for '_'
/SMART Health Status:/{printf "health="; for(i=4;i<=NF-1;i++){printf "%s_", $i}; printf "%s\n", $i}
/number of hours powered up/{print "hours_on="$7; hours_on=int($7)}
/Serial number:/{print "serial="$3}
# SATA specific
/Reallocated_Sector_Ct/{print "realloc="$10}
/Reported_Uncorrect/{print "rep_ucor="$10}
/Command_Timeout/{print "cmd_to="$10}
/Current_Pending_Sector/{print "pend_sec="$10}
/Offline_Uncorrectable/{print "off_ucor="$10}
/ATA Error Count:/{print "ata_err="$4}
/Power_Cycle_Count/{print "pwr_cyc="$10}
# SATA common
/SATA/{type="sata"}
/Temperature_Celsius/{print "temp="$10}
/Airflow_Temperature_Cel/{print "temp="$10}
/Current Temperature:/{print "temp="$3}
/SMART overall-health self-assessment test result:/{print "health="$6}
/Power_On_Hours/{print "hours_on="$10; hours_on=int($10)}
/Serial Number:/{print "serial="$3}
# NVMe common
/NVMe/{type="nvme"}
/Temperature:/{print "temp="$2}
/SMART overall-health self-assessment test result:/{print "health="$6}
/Power On Hours:/{gsub("[^0-9]","",$4); print "hours_on="$4}
/Serial Number:/{print "serial="$3}
/Power Cycles:/{print "pwr_cyc="$3}
# NVMe specific
/Media and Data Integrity Errors:/{print "nvme_err="$6}
# SMART self-test info
/Self-test execution status:/{progress=tolower($4)} # SAS
/SMART Self-test log/{test_seen=1} # SAS
/SMART Extended Self-test Log/{test_seen=1} # SATA
/# 1/{
test_type=tolower($3"_"$4);
# Status could be one word ("Completed") or multiple ("Completed: read
# failure"). Look for the ":" to see if we need to grab more words.
if ($5 ~ ":")
status=tolower($5""$6"_"$7)
else
status=tolower($5)
if (status=="self")
status="running";
if (type == "sas") {
hours=int($(NF-4))
} else {
hours=int($(NF-1))
# SATA reports percent remaining, rather than percent done
# Convert it to percent done.
progress=(100-int($(NF-2)))"%"
}
# When we int()-ify "hours", it converts stuff like "NOW" and "-" into
# 0. In those cases, set it to hours_on, so they will cancel out in
# the "hours_ago" calculation later on.
if (hours == 0)
hours=hours_on
if (test_seen) {
print "test="hours_on
print "test_type="test_type
print "test_status="status
print "test_progress="progress
}
# Not all drives report hours_on
if (hours_on && hours) {
total_hours_ago=(hours_on-hours)
days_ago=int(total_hours_ago/24)
hours_ago=(total_hours_ago % 24)
if (days_ago != 0)
ago_str=days_ago"d"
if (hours_ago !=0)
ago_str=ago_str""hours_ago"h"
print "test_ended="ago_str
}
}
END {print "type="type; ORS="\n"; print ""}
');
fi
type=$(echo "$out" | grep '^type=' | cut -d '=' -f 2)
# If type is not set by now, either we don't have a block device
# or smartctl failed. Either way, default to ATA and set $out to
# nothing.
if [ -z "$type" ]; then
type="sata"
out=
fi
case $script in
smart)
# Print temperature plus common predictors of drive failure
if [ "$type" = "sas" ] ; then
scripts="temp|health|r_ucor|w_ucor"
elif [ "$type" = "sata" ] ; then
scripts="temp|health|ata_err|realloc|rep_ucor|cmd_to|pend_sec|off_ucor"
elif [ "$type" = "nvme" ] ; then
scripts="temp|health|nvme_err"
fi
;;
smartx)
# Print some other interesting stats
if [ "$type" = "sas" ] ; then
scripts="hours_on|defect|nonmed|r_proc|w_proc"
elif [ "$type" = "sata" ] ; then
scripts="hours_on|pwr_cyc"
elif [ "$type" = "nvme" ] ; then
scripts="hours_on|pwr_cyc"
fi
;;
smart_test)
scripts="test_type|test_status|test_progress|test_ended"
;;
*)
scripts="$script"
esac
with_vals=$(echo "$out" | grep -E "$scripts")
if [ -n "$with_vals" ]; then
echo "$with_vals"
without_vals=$(echo "$scripts" | tr "|" "\n" |
grep -v -E "$(echo "$with_vals" |
awk -F "=" '{print $1}')" | awk '{print $0"="}')
else
without_vals=$(echo "$scripts" | tr "|" "\n" | awk '{print $0"="}')
fi
if [ -n "$without_vals" ]; then
echo "$without_vals"
fi
|
