Hi Guru's. In our productive system, we have 2 RAC nodes with oracle 11.2.0.2 last week, 2nd node went down and oracle instance on node 1 also got restarted, our UNIX team is saying they can not see anything wrong with server, and one of the oracle cluster log shows loosing the network, but will that casue the server to go down? even if so, why would it shutdwon the instance on node 1? Can someone please guide me where to look for the reason of crash? Regards, Pravin