What terrified me was the number of low-level issues they had to address. SATA protocol problems, custom-designed SATA cards? Wow. I'd have no idea how to be

What terrified me was the number of low-level issues they had to address. SATA protocol problems, custom-designed SATA cards? Wow. I'd have no idea how to begin with that stuff. As other posters have noted, this company's business is storage. How many PB must one host for such specialization to make sense?