@jesse_b This would potentially mean that placing lots of disks together like that would probably be a bad thing. Not due to the noise, as it's fairly random, but due to the vibrations from the other disks.
@Kusalananda disk bays are specifically designed for that, and come (or used to come) with documentation describing the constraints. I once tried to install 15k SCSI disks in a rack certified for 10k only, and the setup didn’t work very well at all (constant seek errors).
@Kusalananda I think if the drives are too close next to each other (say, couple millimeter apart where they almost touch) the magnetic field of some of them might affect some of the other one next to it/or other. This could also slow some of them down, maybe.
some people mention that this is unlikely to be something that can happen however, but the same was said for sounds (like the demonstration above). I guess this could benefit from more testing to make sure.
@NordineLotfi it is tested, and it isn’t a problem — the magnetic fields are too weak to affect anything outside a drive. Otherwise, drives with multiple platters wouldn’t work — the field would affect more than one platter at a time...
