Why hasn't someone created a cloud setup, multiple computers acting like one, like p2p? Where one computer listens to multiple others in a collective then if one goes down is not a problem; it just fines another one available which is connected to a sibling and continue on. This way all servers are acting like master and slaves passing stuff off as a group evenly. It seems in a cloud setup if the master goes down the slaves "nodes" are lost.
What software is used to do this? I am only running single P4 1.8Gz and 1G ram each machine. Just setup a personal cluster. HA is what I have seen.