During the second day of the third edition of Virtualization Field Day (#VFD3) one of the company that we (as delegates) met was Coho Data that is a (new) cool company in the big storage arena. Their beginnings as Convergent.io with a specific goal of shifting the way that storage is built and managed. This session also match the announcement of the General Availability (GA) of their Web-Scale Storage Appliance for the Enterprise.
Formally they are a software company, but the solution is a storage appliance already packet with both the hardware part and the software part (there are different reasons for this choice, ma mainly for simplify the HCL and have predictable performance in their scaling approach). The entire architecture is well described in their web site or in the #VFD3 video.