A blueprint is a software template that is preinstalled on the ClearPath Forward hardware that is used to define the characteristics of a partition image. For the commissioning to occur, a blueprint must be associated with gold image. During the commissioning process (to create a partition image) you must select a blueprint and then supply required values for the partition image, such as storage size (LUNs), ports, and so on. See Overview of Commissioning a Partition to know more about Commissioning a partition.