Hi, bought four WD Blue 2TB WD20EZAZ drives. All works properly, but at system shutdown they all produces unusual sound. Sounds like it has something brake mechanism that stops the disc.
Here is a recording. At live it is not that loud, but noticable. There are two spin down sound on the recording, 2 drives spins down, after the second 2 drives spinning up then immediately down.
A 5th drive produces exactly the same noise in the PC shop.
Is it normal with this drive?