HP EVA3000 User Manual Page 151

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I/O m odule Input/Output module. The enclosure element that is the Fibre Channel drive
enclosure interface to the host or controller. I/O modules are bus speed specic,
either 1 Gb or 2 Gb.
IDX A 2-digit decimal number portion of the HSV controller termination code display
that denes one of 32 locations in the Termination Code array that contains
information about a specicevent.
See also param and TC.
in-band communi-
cation
The method of communication between the EMU and controller that utilizes
the Fibre Channel drive enclosure bus.
INFORMATION
condition
A drive enclosure EMU condition re port that may require action. This condition
is for information only and does not indicate the failure of an element. All
condition reports have precedence over an INFORMATION condition.
initialization A process that prepares a storage system for use. Specically, the system
binds controllers together as an operational pair and establishes preliminary
data structures on the disk a rray. Initialization also sets up the rst disk group,
called the default disk group.
input/output mod-
ule
See I/O module.
intake tempera-
ture
See ambient temperature
interface A set of protocols used between components such as cables, connectors, and
signal levels.
JBOD Just a Bunch of D
isks. A number of disks connected to one or more controllers.
K Kilo. A scientic notation denoting a multiplier of one thousand (1,000).
KB Kilobyte. A unit of measurement dening either storage or memory capacity.
1. For storage, a KB is a capacity of 1,000 (10
3
) bytes of data.
2. For memory, a KB is a capacity of 1,024 (2
10
) bytes of data.
LAN Local area network. A group of computers and associated devices that share
a common c om munications line and typically share the resources of a single
processor or server within a small geographic area.
laser Adevicethatamplies light waves and concentrates them in a narrow, very
intense beam.
Last Fault View An HSV Controller display dening the last reported fault condition.
Last Termination
Error Array
See LTEA.
LCD Liquid Crystal D isplay. The indicator on a panel that is associated with an
element. The LCD is usually lo cated on the front of an element.
indicator Light Emitting Diode. A semiconductor diode, used in an electronic display, that
emits light when a voltage is applied to it.
License Key A WWN-encoded sequence that is obtained from the license key fulllment
Website.
light emitting
diode
See indicator.
link A connection between por ts on Fibre Channel devices. The link is a full duplex
connection to a fabric or a simplex connection bet ween loop devices.
HP StorageWorks 3000/5000 Enterprise Virtual Array user guide (VCS 4.xxx)
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