Question should hdd do inconsistent noises?

bomboy2121

Honorable
Jan 30, 2015
15
0
10,510
my hdd does normal spinning constant noise normally and sometimes it does sharp chirping noises when i write/read on it,i can hear it because the pc is about 30 cm away from my ear.
i already checked and its unlike any video about scratching or disk failure sounds.
so is it normal to do so?