The Coldago research firm has ranked file storage suppliers in the Cloud, Enterprise and High-Performance markets, making for interesting reading alongside rankings from GigaOm.
Coldago looks at file storage overall and then divides it into three categories which allow it to evaluate 35 suppliers in total and compare them in a three-way split. This seems to us to be a more appropriate way of doing it than comparing them all in a single unstructured data category, for example.