Ion is a name as far as I know. Datomic is a database consists of multiple services so you can deploy it on one machine or multiple. I called it a cluster beca

Ion is a name as far as I know. Datomic is a database consists of multiple services so you can deploy it on one machine or multiple. I called it a cluster because on AWS of course the idea is to deploy it on multiple. Amazon Lambda is a way to deploy code without telling Amazon about the underlying machines/VMs. Ion is a way to deploy Clojure and Datomic without knowing anything about the underlying machines or VMs.