You can install Orchestrator on a computer running Microsoft Windows or you can download and deploy the Orchestrator Appliance. In both cases, the Orchestrator server is preconfigured, and after successful installation or deployment, the service starts automatically.
To enhance the availability and scalability of your Orchestrator setup, you can follow several guidelines :
Install Orchestrator on a computer different from the computer on which vCenter Server runs.
Install and configure a database and configure Orchestrator to connect to it.
Install and configure an LDAP server or a VMware vCenter Single Sign-On server and configure Orchestrator to work with it.