We have talked about clusters in SF, but how can you really understand such a concept in that service? You probably remember that, during the creation of a cluster, we had to choose both node types and their characteristics—the number of VMs and their type. If you choose to have three nodes with five machines in each one, you will end up with a cluster of fifteen machines in total. SF automatically balances it, so if you are changing its size, all services will be redeployed to achieve maximum utilization. In this chapter, we will talk a little about security, available features, and scalability.
The following is a conceptual diagram of a cluster organization: