Overland Storage SnapServer Administrator's Manual page 253

SnapServer 7.0 Administrator's Guide
Firmware
Software stored in read-only memory (ROM) or programmable ROM (PROM). Firmware is
often responsible for the behavior of a system when it is first switched on.
FL_port
A Fabric Loop port within a Fibre Channel switch that is capable of Fibre Channel
Arbitrated Loop operations and is connected to one or more NL_Ports via a Fibre Channel
Arbitrated Loop. An FL_Port becomes a shared entry point for public NL_Port devices to a
Fibre Channel fabric. FL_Ports are intermediate ports in virtual point-to-point links
between end ports that do not reside on the same loop, for example NL_Port to FL_Port to
F_Port to N_Port through a single Fibre Channel fabric switch.
Front-end
See Back-end.
FTP
Short for File Transfer Protocol. A standard Internet protocol that provides a way to
exchange files between computers on the Internet. By default, a SnapServer is set up to be
an FTP server.
Full-duplex
A type of transmission that allows communicating systems to both transmit and receive
data simultaneously.
Gateway
The hardware or software that bridges the gap between two network subnets. It allows data
to be transferred among computers that are on different subnets.
Gigabit Ethernet
Also known as GigE or GbE, this Ethernet standard uses a one Gigahertz (1000 Hz) clock
rate to move data.
GID
Short for Group Identification. On a SnapServer, the unique ID assigned to each group of
users for security purposes.
GuardianOSImage.gsu
An image file used to upgrade the GuardianOS.
HBA
Short for Host Bus Adapter. An HBA is an I/O adapter that sits between the host computer's
bus and the Fibre Channel loop and manages the transfer of information between the two
channels. In order to minimize the impact on host processor performance, the HBA
performs many low-level interface functions automatically or with minimal processor
involvement.
Half-duplex
A type of transmission that transfers data in one way at a time.
10400317-001 10/2011
©2010-11 Overland Storage, Inc.
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