A deployment manager is a server that manages operations for a logical group, or cell, of other servers. The deployment manager is the central location for administering the servers and clusters.
When creating a deployment environment, the deployment manager profile is the first profile that you create. The deployment manager has a First steps console, from which you can start and stop the deployment manager and start its administrative console. You use the administrative console of the deployment manager to manage the servers and clusters in the cell. This includes configuring servers and clusters, adding servers to clusters, starting and stopping servers and clusters, and deploying mediation modules to them.
Although the deployment manager is a type of server, you cannot deploy modules to the deployment manager itself.