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