I'm using a hybrid hard drive on my Debian10/KDE machine.
It's fully encrypted and the GNOME Disks tool says that the Disk is OK with all assessments having the status OK.
My problem is that it's too loud even when according to the disk I/O momitor no data is getting read or written. It's a constant noise (no clicking sounds or alike) that sounds like a fan (it's none of my fans though).
It goes away when putting the drive to standby. A second drive of the same type sounds exactly the same.
Is that normal for such hard drives? They're the only barrier to a fully silent PC-build to me now.
Is there a way to make them more silent beyond standby timeouts? For example would it be possible to choose what should be stored on its SSD and make it stay silent when nothing else gets accessed or when there's no reading/writing going on?