I am from a software background so I am not really up to date with these storage technology.
I am asked this question today and I don't feel like I am able to give a correct answer.
Here is my understanding:
SAN refers to a set of low level of technology which ensures high availability of data storage.
NAS is a more generic term which refers to any device that provides access to storage over a network.
Are they correct? Did I miss any key features?