Can someone help in explaining as what will be difference in using Scan Listener vs its associated 3 IP to the JDBC Thin Driver Connection strings. Client Jdbc drivers are 11g R2 Driver. What need to understand that Scan Listener Name will be better option or 3IP especially from failover perspective if any node Crash and provide more reliability. TIA Sanjay -- //www.freelists.org/webpage/oracle-l