Wrapper script for smartctl to correct S.M.A.R.T. attribute values for Seagate drives.

telegraf-smartctl

#!/bin/bash
# Correct S.M.A.R.T. attribute values for Seagate drives
# https://serverfault.com/questions/313649/how-to-interpret-this-smartctl-smartmon-data

meta_value()
{
  echo "$1" | grep -oP ":\s+\K.*"
}

correct_value()
{
  if [ $correct -eq 1 ] ; then
    echo -n "$(echo "$1" | grep -oP "(\s+\S+){7}\s+")"
    echo "$(("$(echo "$1" | grep -oP "(\s+\S+){7}\s+\K\d+")" >> 32))"
  else
    echo "$1"
  fi
}

IFS=$'\n'
output=($(smartctl $@))

correct=0
for line in ${output[@]} ; do
  case "$line" in
    *"Model Family"*)
      if [[ "$(meta_value "$line")" == *"Seagate"* ]] ; then
        correct=1
      fi
      echo "$line"
    ;;
    *Raw_Read_Error_Rate*)
      correct_value "$line"
    ;;
    *Seek_Error_Rate*)
      correct_value "$line"
    ;;
    *)
      echo $line
    ;;
  esac
done