Beeping WD PIDrive 314GB
Turn off
After my system boot:
[dinux@alarmpi ~]$ sudo hdparm -B /dev/sda1
/dev/sda1:
APM_level = 128
Then i set -B value to 255
sudo hdparm -B 255 /dev/sda1
Check again:
[dinux@alarmpi ~]$ sudo hdparm -B /dev/sda1
/dev/sda1:
APM_level = off