Guest Blog by Ron Graham Ron Graham had served as a Data Center Architect and Systems Engineer for some of the largest IT companies in the U.S. including Cisco Systems, NetApp, Sun Microsystems, and Oracle. He is currently working for Cisco Systems as a Big Data Analytics Engineer. What is Data Virtualization ? Our definition is: Agile data integration software that makes it easy to access all your data no matter where it’s managed, and query it across the network as if it were in a [...]