I have 2 WD Red Plus 8TB Hds in NAS system for about 2 years.
Recently (months) 1 of them started to make periodic noises. A high-pitched squeak followed by accelerations sound, as if has stoped and started to work.
The sound will happen from time to time, sometimes it takes seconds to happen again, sometimes minutes.
Video on on the link:
Only 1 of 2 HDs is making the sound.
I’ve run a SMART test and it returned no errors.
During the SMART test it doesn’t makes the sound.
System - Linux Ubuntu
The computer only function is to store backup and share files between 2 other computers (windows), only reading or writing data 5 - 10 times a day tops.
HD Model - Red Plus 8TB
Firmware 81.00A81