I have a RMAN Backup Single Instance non ASM 12cr2 and Operating System is OEL7.4. how I will restore that backup into ASM two node RAC with OS OEL7.4.? please provide the link or document if any.
Just restore the database as per normal (These steps could possibly be used as a guide) and then use rconfig to convert it to a clustered database (Not forgetting to add it as a cluster resource with srvctl afterward)
Hope this helps