Author Image Posted By : Graham Carmichael 1 Sep
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