What are SANs- (Storage area networks) ?

There are really too many people asking me about Storage area networks these days.. and parroting the latest buzzwords (without understanding any of the basics of storage area networks!)

Well,guys, you may like to read the basics of storage area networks and then have a meaningful conversation with me!

Storage server virtualization- The great new hype!

Storage server virtualization- Is there a greater racket or marketing hype in the data center world today?

The utopian promise of storage server virtualization

• Server virtualization to provide vendor independent data storage
• Lower data storage costs

Isnt that a pipedream?