Sun Microsystems Sun Fire X4200 User Manual
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Glossary-8
Sun Fire X4100 and Sun Fire X4200 Servers System Management Guide • December 2005
Fast Ethernet
Ethernet technology that transfers data up to 100M bits per second. Fast
Ethernet is backward compatible with 10M-bit per second Ethernet
installations.
fdisk partition
A logical partition of a physical disk drive that is dedicated to a particular
operating system on an x86-based system.
Fibre Channel (FC)
A connector that provides high bandwidth, increased distance, and additional
connectivity from hosts to peripherals.
Fibre Channel-
Arbitrated Loop (FC-
AL)
A 100-Mbyte per second loop topology used with Fibre Channel that enables
connection of multiple devices such as disk drives and controllers. An
arbitrated loop connects two or more ports, but allows only two ports to
communicate at a given time.
field-replaceable unit
(FRU)
A system component that is replaceable at the customer site.
file system
A consistent method by which information is organized and stored on physical
media. Different operating systems typically have different file systems. File
systems are often a tree-structured network of files and directories, with a root
directory at the top and parent and child directories below root.
File Transfer Protocol
(FTP)
A basic Internet protocol based on Transmission Control Protocol/Internet
Protocol (TCP/IP) that enables the retrieving and storing of files between
systems on the Internet without regard for the operating systems or
architectures of the systems involved in the file transfer.
firewall
A network configuration, usually both hardware and software, that protects
networked computers within an organization from outside access. A firewall
can monitor or prohibit connections to and from specified services or hosts.
firmware
Software that is typically used to help with the initial booting stage of a system
and with system management. Firmware is embedded in read-only memory
(ROM) or programmable ROM (PROM).
flash PROM
A programmable read-only memory (PROM) that can be reprogrammed while
installed within the system, from software on a disk, by a voltage pulse, or
flash of light.
fully qualified domain
name (FQDN)
The complete, and unique, Internet name of a system, such as “www.sun.com.”
The FQDN includes a host server name (www) and its top-level (.com) and
second-level (.sun) domain names. A FQDN can be mapped to a system’s
Internet Protocol (IP) address.