"'I’d say the biggest worry is that it runs on 2.5in drives,' Stucki said. 'But, those have been come more reliable lately, and especially in stationary machine

"'I’d say the biggest worry is that it runs on 2.5in drives,' Stucki said. 'But, those have been come more reliable lately, and especially in stationary machines like a server.'" 2.5" drives are reputed to be more reliable than 3.5" drives, due to less rotational vibration. The advantage of 3.5" is density.