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RAC works on a quorum basis. For the server to be active it must belong to a cluster with quorum (over half the votes). With a two node cluster, you need unequally shared votes. One way to attain quorum is to use ASM. As ASM is on the first node, the second node can't use that for quorum. Try starting ASM on the first node, then the database on the ...


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Looks like the JDBC 11g NAT+RAC issue. JDBC Connections Using SCAN Fail With ORA-12516/ORA-12520 (Doc ID 1555793.1) JDBC thin 11g connections using Single Client Access Name (SCAN) fail with errors: ORA-12520: TNS:listener could not find available handler for requested type of server ORA-12516: TNS : listener could not find instance ...


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This is definitely possible both with VMware and VirtualBox and any other mainstream virtualization product as well I guess. On my VMware vSphere sandbox, I have created an additional virtual switch that is not mapped to any physical network adapters. This network is not visible/reachable from the outside world, but VMs attached to it can reach each other ...



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