(1) A connectivity topology that connects a series of systems or expansion units together. Signals can travel in either direction for optimised performance. Redundancy is provided to each unit by treating the connexion as a string when a failure occurs somewhere in the loop.
(2) A sequence of instructions performed repeatedly.
(3) A closed unidirectional signal path connecting input and output devices to a system.
(4) A configuration of devices connected to the fabric by way of a fabric loop port (FL_port) interface card.
(5) The physical connexion between a pair of device adapters in the ESS. See also device adapter.