cmd/zpool/zpool.d/realloc

   1 #!/bin/sh
   2 #
   3 # Show SMART stats
   4 #
   5
   6 helpstr="
   7 smart:          Show SMART temperature and error stats (specific to drive type)
   8 smartx:         Show SMART extended drive stats (specific to drive type).
   9 temp:           Show SMART drive temperature in celsius (all drives).
  10 health:         Show reported SMART status (all drives).
  11 r_proc:         Show SMART read GBytes processed over drive lifetime (SAS).
  12 w_proc:         Show SMART write GBytes processed over drive lifetime (SAS).
  13 r_ucor:         Show SMART read uncorrectable errors (SAS).
  14 w_ucor:         Show SMART write uncorrectable errors (SAS).
  15 nonmed:         Show SMART non-medium errors (SAS).
  16 defect:         Show SMART grown defect list (SAS).
  17 hours_on:       Show number of hours drive powered on (all drives).
  18 realloc:        Show SMART reallocated sectors count (ATA).
  19 rep_ucor:       Show SMART reported uncorrectable count (ATA).
  20 cmd_to:         Show SMART command timeout count (ATA).
  21 pend_sec:       Show SMART current pending sector count (ATA).
  22 off_ucor:       Show SMART offline uncorrectable errors (ATA).
  23 ata_err:        Show SMART ATA errors (ATA).
  24 pwr_cyc:        Show SMART power cycle count (ATA).
  25 serial:         Show disk serial number.
  26 "
  27
  28 script=$(basename "$0")
  29
  30 if [ "$1" = "-h" ] ; then
  31         echo "$helpstr" | grep "$script:" | tr -s '\t' | cut -f 2-
  32         exit
  33 fi
  34
  35 smartctl_path=$(which smartctl)
  36
  37 if [ -b "$VDEV_UPATH" ] && [ -x "$smartctl_path" ]; then
  38         raw_out=$(eval "sudo $smartctl_path -a $VDEV_UPATH")
  39
  40         # Are we a SAS or ATA drive?  Look for the right line in smartctl:
  41         #
  42         # SAS:
  43         #       Transport protocol:   SAS
  44         #
  45         # SATA:
  46         #       ATA Version is:   8
  47         #
  48         type=$(echo "$raw_out" | grep -m 1 -Eo '^ATA|SAS$')
  49         out=$(echo "$raw_out" | awk '
  50 # SAS specific
  51 /read:/{print "rrd="$4"\nr_cor="$5"\nr_proc="$7"\nr_ucor="$8}
  52 /write:/{print "rwr="$4"\nw_cor="$5"\nw_proc="$7"\nw_ucor="$8}
  53 /Non-medium error count/{print "nonmed="$4}
  54 /Elements in grown defect list/{print "defect="$6}
  55
  56 # SAS common
  57 /Drive Temperature:/{print "temp="$4}
  58 # Status can be a long string, substitute spaces for '_'
  59 /SMART Health Status:/{printf "health="; for(i=4;i<=NF-1;i++){printf "%s_", $i}; printf "%s\n", $i}
  60 /number of hours powered up/{print "hours_on="$7}
  61 /Serial number:/{print "serial="$3}
  62
  63 # SATA specific
  64 /Reallocated_Sector_Ct/{print "realloc="$10}
  65 /Reported_Uncorrect/{print "rep_ucor="$10}
  66 /Command_Timeout/{print "cmd_to="$10}
  67 /Current_Pending_Sector/{print "pend_sec="$10}
  68 /Offline_Uncorrectable/{print "off_ucor="$10}
  69 /ATA Error Count:/{print "ata_err="$4}
  70 /Power_Cycle_Count/{print "pwr_cyc="$10}
  71
  72 # SATA common
  73 /Temperature_Celsius/{print "temp="$10}
  74 /SMART overall-health self-assessment test result:/{print "health="$6}
  75 /Power_On_Hours/{print "hours_on="$10}
  76 /Serial Number:/{print "serial="$3}
  77
  78 END {ORS="\n"; print ""}
  79 ');
  80 fi
  81
  82 # if type is not set by now, either we don't have a block device
  83 # or smartctl failed. Either way, default to ATA and set out to
  84 # nothing
  85 if [ -z "$type" ]; then
  86         type="ATA"
  87         out=
  88 fi
  89
  90 case $script in
  91 smart)
  92         # Print temperature plus common predictors of drive failure
  93         if [ "$type" = "SAS" ] ; then
  94                 scripts="temp|health|r_ucor|w_ucor"
  95         elif [ "$type" = "ATA" ] ; then
  96                 scripts="temp|health|ata_err|realloc|rep_ucor|cmd_to|pend_sec|off_ucor"
  97         fi
  98         ;;
  99 smartx)
 100         # Print some other interesting stats
 101         if [ "$type" = "SAS" ] ; then
 102                 scripts="hours_on|defect|nonmed|r_proc|w_proc"
 103         elif [ "$type" = "ATA" ] ; then
 104                 scripts="hours_on|pwr_cyc"
 105         fi
 106         ;;
 107 *)
 108         scripts="$script"
 109 esac
 110
 111 with_vals=$(echo "$out" | grep -E "$scripts")
 112 if [ ! -z "$with_vals" ]; then
 113         echo "$with_vals"
 114         without_vals=$(echo "$scripts" | tr "|" "\n" |
 115                 grep -v -E "$(echo "$with_vals" |
 116                 awk -F "=" '{print $1}')" | awk '{print $0"="}')
 117 else
 118         without_vals=$(echo "$scripts" | tr "|" "\n" | awk '{print $0"="}')
 119 fi
 120
 121 if [ ! -z "$without_vals" ]; then
 122         echo "$without_vals"
 123 fi