Seagate on Tuesday cut down its Barracuda desktop hard drives to just one core model line in what may be as much a supply issue as simplification. It will drop both the Barracuda Green and XT lines and fold some of their features into the main series, with performance features like SmartAlign (4K data block) formatting and hybrid SSD/hard drive models simply showing up in the regular line. Storage will start at 250GB and peak at the previous 3TB.