We've 2 Concurrent Manager nodes & 2 node for forms in a 2 node RAC environment. I've gone through few docs on PCP config and configuration what we've did in our environment is confusing me a lot . Summary of our CM's(concurrent Mgr) configuration in our environment to make my questions help better for you people to answer [image: :)] 1. PCP instance check profile option is set to OFF. 2. s_cp_twotask => xxxx is configured to connect to only one instance but failover is allowed to Node 2. 3. As per point 2 all our CM's are being connected to Node 1 only. 4. For all the Managers we've edited both primary & seconday except for service managers. Is that right ? Here are my questions to answer ? 1. At the moment we'll start all the concurent managers in Node 1 but we only start the apps listener in Node 2. Is this right ? by considering above config if not please correct me. 2. As per my understanding if all the concurrent mgr are starting in Node 1. But still FNDIMON & FNDSM should be up and running in Node 2 ? incase of any failover in Node 1 FNDIMON should be able to start Internal manager in Node 2 ? 3. Will FNDSM executable is spawned after starting Apps listener script in Node 2 ? 4. Some of the below errors are seen continiously in Concurrent mgr logfile . But our mgr's are running fine with out any issues why do i still see below errors in the log files if so ? Adding Node:(XXXXXX), Instance:(Inst1) to unavailable list Adding Node:(XXXXXX), Instance:(Inst1) to unavailable list 5. Also how do i find out which load balancer i'm using for example ( DNS Load balancer or HTTP Hardware Loadbalancer) for Oracle Apps ? Regards Bala -- //www.freelists.org/webpage/oracle-l