Description of Brokers

The role of a broker is to provide database life cycle control (start, stop) for database processes, that is transaction engines (TEs) and/or storage managers (SMs). A broker provides the following:

Each broker has a complete picture of the entire domain, including all hosts, and all databases and their processes. As you can see, a domain is functional only with at least one broker. For continuous availability, each data center (and availability zone) should run at least one broker.