I have a 3TB external HDD that used to site on my desk; my dog caught the cable and it came crashing to the floor. I'm looking for suggestions on data recovery. I do accept that data recovery may not be possible. After the incident the drive did run for an hour or so before it failed. I have tried the following so far to no avail: I have attempted mounting it inside my workstation; it is a SATA drive. I have attempted swapping the internal HDD into another similar WD external HDD and nothing happened. Ultimately it doesn't register at all; I'm not able to get it to even be recognized. When I plug in the external drive it does not make any funny sounds; it does power up and the HDD does spin briefly before stopping.
I have attempted to use Recuva, a data recovery application that is free but it will not be of help as it can't see the drive. A coworker suggested DD on linux and I found a Windows version however it also can't see the drive; the DD for Windows btw is here: http://aeroquartet.com/movierepair/dd%20for%20windows