“SCSI Bus physical ports provide the means which allow a device to connect drivers and receivers to the SCSI parallel bus cable. An SCSI logical port is either an SCSI initiator port or an SCSI target port; it is the logical entity that originates or processes SCSI commands (including data transfer) and task management requests. For example, the SCSI initiator port enables SCSI operations to flow to and from a server operating system device driver.”