NEC Storage M100 Series User Manual page 448

User Guide
Dummy carrier
An exclusive tray used for an uninstalled hard disk drive. A dummy carrier fills the slot for hard disk
drives.
Duplex
Duplex settings specify whether or not two devices can communicate in both directions
simultaneously. Duplex mode can be half duplex or full duplex. Half duplex allows communication in
both directions, but only one direction at a time. Full duplex allows communication in both directions
simultaneously.
F
FC
See Fibre channel.
FC Switch
See Fibre Channel
Fibre channel
The Fibre Channel standard defines a high-speed data transfer interface that is primarily used in
SANs.
Fibre Channel Switch
It is a network switch compatible with Fibre Channel protocol.
Firewall
Component of a computer system or a network that is designed to block unauthorized access while
permitting authorized communications.
Full duplex
See Duplex.
G
Gateway address
Indicates an address of the device such as router, which serves as an access point to a network.
H
Half duplex
See Duplex.
HBA
See Host Bus
Host Bus Adapter
Host Bus Adapter (HBA) is the Fibre Channel (FC) interface card which connects a host server to a
SAN (Storage Area Network). It offers input/output (I/O) operations and physical connectivity
between the server and the storage device.
Release 6.0
Switch.
Adapter.
448
Glossary