(4-traders.com) TechNavio, a tech-focused research firm, has published a list of the Top 12 Companies in the Global Software Defined Storage (SDS) Market. SDS is storage virtualization that separates services such as data management, data protection and I/O capabilities from the underlying storage infrastructure....http://www.4-traders.com/news/HP-IBM-and-Coraid-Make-TechNaviorsquos-List-of-Key-Vendors-in-the-Global-SDS-Market--19898585/