Drive capacity limitations?

I've been trying to figure out if there's a hard drive capacity limitation for Pro Tools. I heard somewhere that PT10 could only see up to 2TB on a single hard drive. Is that right?

I'm considering an OWC Thunderbolt drive with 4TB (2x 2TB) capacity, and want to make sure that it would work.

I tried the search function, and Avid's hard drive requirements, but don't see anything.

Anyone know about this?