Swift is the OpenStack object store project. It offers cloud storage software to enable you to store and retrieve large data with a simple API. The service is ideal for storing unstructured data that can grow without bounds.
For more information about Swift, refer to the Object Storage Chapter in the OpenStack community's OpenStack Cloud Administrator Guide.
The OpenStack community documentation recommends a minimum of 6 nodes for a Swift deployment in production mode. These nodes consist of a Swift proxy controller and 5 Swift Storage nodes. This guide, however, describes a 3-node deployment to be consistent with the 3-node architecture on which the previous configuration procedures are based. You can add Storage nodes later as needed.