HP N1200 - StorageWorks Network Storage Router User's And Service Manual page 125

initiator A device (usually a host system) that requests an operation to be performed by another device
known as a target (usually a peripheral).
initiator mode Configuration mode of the network storage router in which a Fibre Channel initiator requests
operations to be performed by a SCSI target device.
IP Internet protocol
link For Fibre Channel, it is a connection between two nodes, each having at least one N_Port (or
the other end could be an F-Port), interconnected by a pair of optical or copper links, one
inbound and one outbound.
longwave Lasers or LEDs that emit light with wave lengths around 1300 nm. When using single mode (9
nm) fibre, longwave lasers can be used to achieve lengths greater than 2 km.
loop port (nl_port) A FC port that supports loops.
LUN Logical Unit Number or Logical Unit; a subdivision of a SCSI target. For SCSI-2, each SCSI
target supports up to sixteen LUNs (LUN-0 to LUN-15). Using LUNs, the FC host can address
multiple peripheral devices that may share a common network storage router.
LVD/SE Low Voltage Differential/Single-Ended
mapping table A table which is indexed by sequential LUN values, indicating selected BUS:TARGET:LUN
devices. It is used by the network storage router to perform Fibre Channel-to-SCSI operations
by default.
MB megabyte. (There are 8 bits in a byte.)
motherboard The main PCA of the network storage router that provides a physical and logical connection
between Fibre Channel and SCSI devices.
multiplexer A device that allows two or more signals to be transmitted simultaneously on a single channel.
N_port A FC term defining a "Node" port. A FC-defined hardware entity that performs data
communication over the FC link. It is identifiable by a unique Worldwide Name. It can act as
an originator or a responder.
N_port identifier A FC term indicating a unique address identifier by which an N_Port is uniquely known. It
consists of a Domain (most significant byte), an Area, and a Port, each 1 byte long. The N_Port
identifier is used in the Source Identifier (S_ID) and Destination Identifier (D_ID) fields of a FC
frame.
network storage An intelligent device within the SAN (storage area network) infrastructure that can handle
router multiple protocols, such as Fibre Channel and SCSI. The routing decision is based on paths
between address mappings among dispersed initiators and targets.
offline Taking the network storage router offline indicates that all SCSI and FC adapters in the
network storage router are offline.
Taking a SCSI adapter offline means ending inputs/outputs and suspending all transactions
going from the network storage router to the specified SCSI devices. The SCSI adapter is no
longer active or available for access.
Taking a FC adapter offline means ending inputs/outputs and suspending all transactions
going from the network storage router to the specified FC device.
N1200-320 4Gb Network Storage Router user and service guide 125