I have had an iomega 2TB drive connected to the USB port on the My Cloud. However, performance was poor and I have
been having lots of odd issues. As a lark, I removed the drive and connected it to my Mac.
The drive works just fine on my Mac, and all of my performance and software issues on the My Cloud went away.
This makes me wonder if there is a restriction on the kind of USB drives supported. Is there a supported list anywhere?