Fixed the Seagate 7200.11 hard drive with the Bus Pirate
I quickly diagnosed the problem down to a dead HDD. A quick google search later and I discover that I have been hit by the well known Seagate Barracuda 7200.11 BSY bug. Too many power cycles on the drive and it stops working.
Using the following DIY guide, I was able to recover the disk drive by connecting to the diagnostic serial port on the drive using my Bus Pirate.
Via Twitter.Bus Pirate and tagged Bus Pirate v3.6, Seagate 7200.11.