If you implement SCAN for your 3 or 4 Node 11gR2 RAC, how do you setup client applications to connect to a particular set of nodes? For example, say, you want your HR application connect to only node 1 and 2 and Payroll application connect to only 2 and 3? Since TNS entry will have only SCAN name, how do we configure to direct the client applications to connect to only a set of nodes? -- Anurag Verma, Database Administrator ERCOT(Electric Reliability Council of Texas), Texas 76574 -- //www.freelists.org/webpage/oracle-l