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Sun StorageTek 5220 NAS Appliance Getting Started Guide • October 2006
GB
(gigabyte) (n.) A unit of information equal to 1024 megabytes.
Gigabit Ethernet
(n.) An Ethernet technology that enables data transfer rates of up to 1 Gbps
using optical fiber cable or unshielded twisted-pair cable.
hot-swap
(v.) To replace a failed component without interruption of system service.
HBA
See host bus adapter.
host bus
adapter(HBA)
An I/O adapter than connects a host I/O bus to a computer’s memory system.
(SNIA)
KB
(kilobyte) (n.) A unit of information equal to 1024 bytes.
LAN
(local area network) (n.) A data communications network that is limited
geographically limited (about 1 km radius).
LCD
(liquid crystal display) (n.) A low-power display technology that uses rod-
shaped crystal molecules that change their orientation when an electrical
current flows through them.
LED
(light-emitting diode) (n.) A semiconductor device that converts electrical
energy into light.
LUN
logical unit number
MB
(megabyte) (n.) A unit of information equivalent to 1,048,576 bytes or 1024
kilobytes. Most uses of “megabyte,” however, refer to exactly 1 million bytes.
MHz
(megahertz) (n.) A measure of frequency equivalent to 1 million cycles per
second.
MTBF
(Mean Time Between Failures) (n.) The estimated time a device operates before
a failure occurs.
NAS
(network-attached storage) (n.) A storage appliance that connects directly to
the network. NAS does not usually perform network directory services or
function as an application server; instead, it augments storage capacities.
Quick and easy to set up, NAS appliances also typically provide cross-platform
file sharing.
NFS
Network File System
NIC
(network interface card) (n.) An adapter that lets you connect a network cable
to a microcomputer. The card includes encoding and decoding circuitry and a
receptacle for a network cable connection.
NIS
Network Information Service
patch
A software or firmware update for a storage device or device component.
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