mdw@git.distorted.org.uk Git - rcheck/blob - check.d/disks

   1 #! /bin/bash
   2 ###
   3 ### Check the health of attached physical disks.
   4
   5 set -e
   6 if [ ! -x /usr/sbin/smartctl ]; then exit 0; fi
   7
   8 ## Build a list of actual disk devices according to their buses.
   9 disks=
  10 for p in /sys/class/block/*; do
  11   bus=none devtype=none idtype=none
  12   while read code assg; do
  13     case "$assg" in
  14       DEVNAME=*) name=${assg#*=} ;;
  15       ID_BUS=*) bus=${assg#*=} ;;
  16       DEVTYPE=*) devtype=${assg#*=} ;;
  17       ID_TYPE=*) idtype=${assg#*=} ;;
  18     esac
  19   done <<EOF
  20 $(udevadm info --query=all --path=$p)
  21 EOF
  22   case "$bus,$devtype,$idtype" in
  23     ata,disk,disk | scsi,disk,disk) disks=${disks+$disks }$name ;;
  24   esac
  25 done
  26
  27 ## Now go through each disk.
  28 for disk in $disks; do
  29   set +e; smartctl -qsilent $disk; rc=$?; set -e
  30   if (( $rc & 2 )); then continue; fi
  31
  32   if (( $rc & 8 )); then echo "W: SMART reports disk $disk failing"; fi
  33
  34   smartctl -A $disk |
  35   while read id attr flag value worst thresh type upd when raw; do
  36     case "$id" in *[!0-9]*) continue ;; ?*) ;; *) continue ;; esac
  37     while :; do
  38       case "$value" in 0*?) value=${value#0} ;; *) break ;; esac;
  39     done
  40     while :; do
  41       case "$thresh" in 0*?) thresh=${thresh#0} ;; *) break ;; esac;
  42     done
  43     case "$attr,$raw,$when" in
  44       Current_Pending_Sector,*[!0]*,*)
  45         echo "W: disk $disk has $raw pending sector(s)"
  46         ;;
  47       Offline_Uncorrectable,*[!0]*,*)
  48         echo "W: disk $disk has $raw offline-uncorrectable sector(s)"
  49         ;;
  50       *,*,FAILING_NOW)
  51         echo "W: disk $disk attribute $attr failing (value = $raw)"
  52         ;;
  53       *)
  54         if (( $value < $thresh )); then
  55           echo "I: disk $disk attribute $attr below thresh (value = $raw)"
  56         fi
  57         ;;
  58     esac
  59   done
  60 done