Will do, thanks.

No, it's Linux Ext4.

Thanks for the reply.

I just installed CloudBerry a few days ago; it's on a Linux machine. It seems to be version 3.2.0.114.

The drive is USB-connected through a 3.0 cable. The line in /var/log/messages reads "kernel: usb 1-1.2.4: new high-speed USB device number 98 using ehci-pci" but I don't know if that means usb 3.0

Settings>Advanced reads Mode: Low
Settings>Network has local storage max speed unchecked

The backup was done with a thread count of 5, chunk size 10Mb, memory used 100Mb

I'm not using compression or encryption