This image shows an availability domain in an Oracle Cloud Infrastructure region, with the following resources deployed in it:

• A public subnet, used for a bastion server and a load balancer.
• A private subnet to which three Elastic stacks are attached, each in a separate fault domain. Each stack has a master node and a data node. To each data node, a 200-GB block volume is attached.
• The load balancer distributes requests to the Elastic stacks.