HDD spindown check

# Usage
 
Output state:
./check_hdd_spindown.sh /dev/sda /dev/sdb /dev/sdc
 
Log state into file:
./check_hdd_spindown.sh /dev/sda /dev/sdb /dev/sdc >> /var/log/spindown.log &

#!/bin/sh
 
while [ 1 ]
do
        i=0
        for DRIVE in $*
        do
                DATE=`date +"%Y-%m-%d %H:%M:%S"`
                RESULT_OLD=${RESULT[i]}
                RESULT[$i]=`hdparm -C $DRIVE | grep state`
 
                if [ "$RESULT_OLD" != "${RESULT[i]}" ]
                        then echo $DATE $DRIVE ${RESULT[i]}
                fi
 
                i=$i+1
        done
 
        sleep 5
done