1. A method of maintaining a networked computer system including first and second nodes and an event processing server, comprising: the first and second nodes detecting changes in state; the event processing server receiving notification of the changes in state from the first and second nodes; the event processing server correlating changes in state detected in the first and second nodes; and the event processing server executing a maintenance decision which affects the first and second nodes; wherein the detecting, transmitting, correlating, and executing occurs without human intervention.