WD Black

I'm wondering if there are performance issues with WD- Black hard drives.

On one of my Wife's Win10 machine, there was constant disk activity that 
I could not trace down...all seemed normal.

I decided to clone the drive to a SSD and found a nice improvement that 
I thought was simply a function of the SSD.


Then realized that on my main machine running Ubuntu 20.04 that also had 
a WD-Black drive, there also seemed to be excess drive activity. Since I 
have not done a disk clone backup in years, I cloned the drive to a 
Seagate SATA and found the excess drive activity had been cured.


At the time I purchased the WD-Black, I thought I was getting a top of 
the line drive.