I'm very happy with my 1TB-mybook, but there are two issues where I want to have more speed:
1) when I connect to mybook via a GBit-connection (I even enable Jumboframes/mtu=7200) I get a maximum speed of 64000kbit/s which is less then I actually expected. I expected 120.000-250.000 kbit/sec - The disk itself is formated as xfs and the connection is via NFS so this should not be the issue? how fast is your connection to the mybook?
2) when I connect an external usb-disk to the mybook I can access it fine, but here the speed really goes down. I only get 12000kbit/s which is really slow. I tried several disks (all usb2 !!!) but the bootleneck seems to be inside mybook. any idea? any comparison? I connected the usb-disk via a usb-hub (cause I like to connect more than one usb-disk) but this should not be the issue.