Compare that to what happens when the power is removed and reattached without a suspend/resume cycle (which doesn't leave the drive constantly spinning down):
hdparm -i /dev/sda hdparm -B 128 /dev/sda hdparm -i /dev/sda hdparm -B 254 /dev/sda
Compare that to what happens when the power is removed and reattached without a suspend/resume cycle (which doesn't leave the drive constantly spinning down):
hdparm -i /dev/sda
hdparm -B 128 /dev/sda
hdparm -i /dev/sda
hdparm -B 254 /dev/sda