SDN and NFV Simplified: A Visual Guide to Understanding Software Defined Networks and Network Function Virtualization

31. Where’s My Data, Exactly?

With the advent of the cloud in the late 2000s, the question, “Where’s my data, exactly?” crops up time after time when discussing the possibility of deploying applications to a cloud service provider. Businesses are rightly skeptical about passing and storing confidential, sensitive, or valuable data on a network outside of their own jurisdiction. This question is often posed by those who are either against the use of a third-party cloud or by those who lack a technical understanding. It is important to ensure data is secure, but the issue of exactly where the data is located is inconsequential. To understand why specific location is not a big issue, we need to look at storage virtualization—how it has evolved from ...