Hi there, I am new to clusters, I have an active/active 2 node cluster. I host about 5 mission critical Databases, we just went live with the cluster on monday, and 48 hours later one of the databases started timing out and having serious performance problems, yet other databases on the same instance were unafected. I monitor the cluster with MOM 2005 and mom did not report any IO or memory problems exceeding thresholds. There was no errors at all in the event or SQL logs, everything looks perfect on the server. The server cpu usage was idle, and network ussage was very low. What do you recomend I use to figure out why after 48 hours of ussage customers started getting timeouts? Failing the cluster over to node2 fixed the problem, but I am afraid it might come back again. Thanks for any info!