SSD squealing?!

[wolvers]

One of my SSDs sounds like it is squealing during access, has anyone here ever experienced this and does it mean that one of them is dying?

 

[wolvers]

Well, it's only making the noise when the HDD light lights up and I was copying files to the SSD at the time. I guess it's possible that it's the PSU but the load on an SSD is so small.

 

[wolvers]

A network drive. I think I'll do some more copying to and from the SSDs and see if I can work out which drive it is.