IMHO the best overall collection of valuable information about Western Digitals MyBook series of NAS. It covers the Blue Ring, the White Light and the Live editions. GO
Use your disks to monitor temperature in your system. This does not only work in a MBWE, but on any system with smartmontools installed.
smartctl -d ata -A /dev/sda
(or any disk device) does the trick! GO
How to open the Mybook World White Light Edition
Don't use the Force, Luke! Open the box without damaging it (too much)! But voiding warranty, of course! GO