There is a 2 node 11gr2 RAC setup on IBM servers with OS AIX 6.1. Now, these two nodes are going to two different datacenters as standalone test servers without uninstalling 11gr2 RAC binaries. Can we use the nodes as standalone by changing the hostname and use database home to create new instance? without having to re-install database home? There is no time to go for uninstalling the RAC environment.
Could work, also I never done this by myself. Few thing to think of:
1. disable crs from starting
2. what about asm? listeners? you need to start it manually by sqlplus and lsnrctl
3. hostname change? reflect the change in listener/tnsnames/sqlnet. Possibly running the cloning script will help.