Is Interconnect mandatory in ORACLE RAC??
The private interconnect is the physical construct that allows inter-node communication or Cache Fusion communication.
because of high speed interconnect existing in the cluster between each instance. Each of instance is connected to other instance using a high-speed interconnect. This makes it possible to share the memory between 2 or more servers. Previously only datafile sharing was possible, now because of interconnect, even the cache memory can be shared.
also private IP range for cluster services cannot be used at public IP range domain due to security purpose.
so in my opinion, interconnect is must in RAC. Please share your opinion? thanks