Configuring RAC on Amazon Cloud

Hello All,

This post is specifically for those who works on Amazon Cloud and want to build a RAC on Amazon EC2 Instances (machines).

There is a very good article in the AWS Documentation Articles (here), but the linux instances taken and built were very large and per hour it cost around 4$ each machine (three machines).

For those who are looking for a cost effective testing solution, I have tried to built the RAC on m3.medium instances which costs around 15Cents per hour. Which I think phenomenal cheap. Finally, my verdict its not that easy to have the machines ready and also the following issues (at least to my knowledge, I welcome if anyone can correct me here)

• Multicast Support on EC2 Instance IP not supported: Due to this we have to rely on Ntop N2N (kind of VPN) which transmits multicast packets across nodes
• Although used N2N, the cluster haip having issues, this means you cannot have multiple private networks
• Public VIP that means Node VIP and SCAN VIP cannot be failed over as well unless you create a specific failover script to right instances
• You cannot use server pools concept since the VIP assignments are static to the nodes.

Despite of having all this , if you want to check here are the steps.

The following steps assumes

• You have an AWS account and a EC2 instance with AWS CLI installed

Node Configurations

Installation Document