I am trying to figure out some monitoring best practice. I have an environment which is two Oracle DB servers, plus two Oracle Application servers, and two Presentation layer servers ( apache) all are clustered (2*DB, 2*APP, 2 * apache) all are linux. I am trying to monitor actual availabilty which means I cant monitor individual servers as they are in clusters, I think with SQL / Exchange / Windows I would use the Cluster Probe to monitor the cluster service as an example, but what is the best method for doing it in Oracle / Linux. --
Any help is truly appreciated.