Download this 2 page white paper from IDG Connect and Scalent.
Scalent lets you rapidly, repeatedly deploy different multi-tier business systems on the same machines for Dev/Test… on the fly, without any physical network changes, and through an interface that guarantees server farm functional reality matches design. Scalent software enables Enterprise IT to transform the function of entire farms of servers on the fly, by continuously controlling not only what boots on every server, but also the associated I/O topologies—LAN and SAN.
Grab it here.