I am leaving here the link to you hear the noises that my disks started to make today.
This is strange, this noises started today and I do not see any disk activity during the sound. Hearing the sound seems the disks are spinning up and making noises with their head. The noises from the audio file have a cycle of 3 times and they stop. Now have passed 1 hours and no noises.
I do not see any errors from my SMART test made this evening.
If this sound is normal, what is happening? If not normal, how can I confirm there is a problem to return it?
Thank you in advance.