...storage (DAS) to itself and other virtual servers as a virtualized SAN without the requisite cost and complexity of a 'physical' SAN," said Marc Staimer, President of Dragon Slayer Consulting. "The end result is a great deal simpler, higher performing...
http://www.sys-con.com/read/594080.htm
...networks (VSANs) and Inter-VSAN routing (IVR) allow administrators to logically and functionally partition a single physicalSAN fabric or switch into multiple VSANs, each with its own security policies and fabric services. Open Platform for...
http://www.sun.com/storagetek/docs/SUN_Cisco_AAG.pdf