etc conf hdparm config file for etc init hdparm darkk this will preven

# /etc/conf.d/hdparm: config file for /etc/init.d/hdparm
...
# darkk: this will prevent "hdd clicking"
#  setting Advanced Power Management level to 0xfe (254)
#  setting standby to 0 (off)
hda_args="-S 0 -B 254"