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SnapScale/RAINcloudOS 4.1 Administrator’s Guide
GL - Master Glossary & Acronym List
Failover/Failback
A combination of Failover and Failback. When a preferred path becomes unavailable, another
path is used to route I/O until the preferred path is restored. In this case I/O will “fail back” to
the preferred path once it is available again.
Fibre Channel
Fibre Channel (FC) is a gigabit-speed network technology which transports SCSI commands
over Fibre Channel networks. Fibre Channel was primarily concerned with simplifying the
connections and increasing distances, but later designers added the goals of connecting SCSI
disk storage, providing higher speeds and far greater numbers of connected devices.
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.
FTP
Short for
File Transfer Protocol
. A standard Internet protocol that provides a way to exchange
files between computers on the Internet.
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.
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.
Hidden Share
A share that restricts the display of the share via the Windows (SMB), Web Home
(HTTP/HTTPS), FTP, and AFP protocols. See also
.
Host Name
The unique name by which a computer is known on a network. It is used to identify the
computer in electronic information interchange.