Bull NovaScale 5 5 Series, User Manual

Page: 367 / 384

G-5
Glossary
IOC: I nput / O utput Board C ompact. The IOC
connects up to 6 PCI–X boards.
IOL: I / O Board L egacy. The IOL provides:
– I/O controller Hub
– USB ports
– 10/100/1000 Ethernet controller
– Video controller
– Serial / debug port
IOR: I
/
O
Board
R
iser. The IOR provides:
– I/O controller Hub
– USB ports
– 10/100/1000 Ethernet controller
– Video controller
– Serial / debug port
IP: I nternet P rotocol. The protocol by which data is
sent from one computer to another via the Internet.
Each computer (known as a host) on the Internet
has at least one IP address that uniquely identifies
it from all other computers on the Internet.
IPD: I
nternal
P
eripheral
D
rawer. The IPD houses
legacy peripherals (DVD–Rom drive, USB port)
and SCSI system disks.
IPF: I tanium P rocessor F amily.
IPL: I nitial P rogram L oad. It defines the firmware
functional phases during the system initialization.
IPMB: I ntelligent P latform M anagement B us.
IPMI: I ntelligent P latform M anagement I nterface.
ISA: I ndustry S tandard A rchitecture. An industry
standard for computers and circuit cards that
transfer 16 bits of data at a time.
J
Jumper: A small electrical connector used for
configuration on computer hardware.
K
KVM: K
eyboard
V
ideo
M
onitor.
KVM switch: the K eyboard V ideo M onitor switch
allows the use of a single keyboard, monitor and
mouse for more than one module.
L
LAN: L ocal A rea N etwork. A group of computers
linked together within a limited area to exchange
data.
LD: L ogical D isk. A Storeway FDA 1300/2300
logical disk (or LUN) is visible to the OS as a Disk.
See LUN and PD (Physical Disk).
LED: L ight E mitting D iode. A small electronic
device that glows when current flows through it.
Legacy Application: An application in which a
company or organization has already invested
considerable time and money. Typically, legacy
applications are database management systems
(DBMSs) running on mainframes or minicomputers.
LPT1 or LPT2: The name assigned to a parallel
port to specify its address. See Parallel Port.
LS240: L aser S ervo super diskette holding up to
240 Mb.
LUN: L ogical U nit N umber. Term used to designate
Logical Storage Units (logical disks) defined
through the configuration of physical disks stored in
a mass storage cabinet.
LVDS: L ow V oltage D ifferential S CSI.
M
MAESTRO: Machine Administration Embedded
Software Real Time Oriented.
Part of the PAM software package embedded on
the PMB board.
MCA: M
achine
C
heck
A
bort.
Memory: Computer circuitry that stores data and
programs. See RAM and ROM.
Memory bank: The minimum quantity of memory
used by the system. It physically consists of four
memory DIMMs.
MFL: M idplane F an & L ogistics board. The MFL
houses the Fan Boxes and is connected to the MIO
and MQB. See MIO, MQB.
Microprocessor:
An integrated circuit that
processes data and controls basic computer
functions.
Midplane: M id– P lane. All system hardware
components are connected to the Midplane.
MIMD: M ultiple Instruction M ultiple D ata
MIO: M idplane I nput / O utput board. The MIO
connects one or two IOC boards and the PMB. See
Core Unit.
Mirrored volumes: A mirrored volume is a
fault–tolerant volume that duplicates your data on
two physical disks. If one of the physical disks fails,
the data on the failed disk becomes unavailable,
but the system continues to operate using the
unaffected disk.
Module: a Midplane Board with all its connected
components and utility devices. See CSS Module
and MP.