This read-create DisplayString object holds a user-assigned, human-readable name for a VSI controller, defaulting to an empty string if the administrator never sets one, and it cannot be changed once the controller's row is active. An administrator names controllers to make them easier to identify in management tools instead of tracking them only by index numbers. For example, naming a controller CORE-VSI-1 at creation time lets that name persist for the life of the active configuration.