Below are the steps to prepare a node to be added to the cluster:
1. Server build out and establish physical connection: Build out servers, OS, confiure network, interconnect, share disks, etc..
2. Install OS: Clone a image of OS that matches with other nodes in your cluster including patches updates, drivers, etc..
3. Create Oracle users and groups: Make sure all matches up
4. Setup SSH
Use cluvfy to validate the hardware and OS installation.
cluvfy stage -post hwos -n all -verbose
cluvfy comp peer -refnode RAC01 -n RAC08,RAC09 -orainv oinstall -osdba asmdba -verbose
cluvfy stage -pre nodeadd -n RAC08,RAC09 -fixup
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