#!/bin/bash
#function-1:显示硬盘盘符+Lable+容量以及硬盘上电状态
#function-2:通过echo -e转义与if...elif...else语句使其active呈现红色,standby呈现绿色,方便快速检视硬盘上电情况
#function-3:原for循环语句中加入判断和循环计数方式,统计active和standby的数量
#function-4:增加 if 嵌套语句判断除开 active 和 standby 之外状态的硬盘，并将其标记为 unknown
#function-5:将unknown状态的硬盘列举出来(对for语句上瘾了……

dsk=`ls /dev/sd* | grep -Eo 'sd(a{2}|[a-z]+)$'`
echo `date +%c`
standby=0
active=0
unknown=0
c=0

if readlink /proc/$$/fd/1 2>/dev/null | grep -qF /dev/ ; then
	highlight(){
		echo -e "$1 $2 \033[0m"
	}
else
	highlight(){
		echo -e "$2"
	}
fi

for i in $dsk;
do
echo -e "\n";
echo -e "-----------------------";
echo -n "/dev/$i : " ;
stats=`smartctl -i -n standby /dev/$i|grep "mode"|awk '{print $4}' `;
#echo $stats
if [[ $stats == STANDBY ]]||[[ $stats == ACTIVE ]]||[[ $stats == IDLE_A ]]
then
   for s in $stats;
   do
   if [ $s == STANDBY ]
   then
      highlight "\033[30;42m" " STANDBY "
      let standby=$standby+1
   else
      highlight "\033[37;41m" " ACTIVE "
      let active=$active+1
   fi
   done
else
   highlight "\033[30;47m" " UNKNOWN "
   let unknown=$unknown+1
   for un in $i
   do
     list[c]=$un
     ((c++))
   done
fi
echo `lsblk /dev/$i|grep "/srv/dev-disk-by-label-"|awk '{print $7}' `;
echo `lsblk /dev/$i|grep "/srv/dev-disk-by-label-"|awk '{print $4}' `;
done

echo -e "\n";
highlight "\033[37;41m" "Active  Disk in Total=$active  ";
highlight "\033[30;42m" "Standby Disk in Total=$standby  ";
highlight "\033[30;47m" "Unknown Disk in Total=$unknown  ";
#echo $c
echo -e "Unknown Disk list: ";
for((b=0;b<=$c;b++));
do
  if [[ $b -lt $c ]]
  then
  echo ${list[b]}
  fi
done
echo -e "\n";
exit