HP StorageWorks 4400 User Manual page 116

one or more of the virtual disks that are created and presented by the controller
pair.
host-side ports See
hot-pluggable
A method of element replacement whereby the complete system remains
operational during element removal or insertion. Replacement does not interrupt
data transfers to other elements.
hub A communications infrastructure device to which nodes on a multi-point bus or
loop are physically connected. It is used to improve the manageability of physical
cables.
I/O module
Input/Output module. The enclosure element that is the Fibre Channel drive
enclosure interface to the host or controller.
IDX A 2-digit decimal number portion of the HSV controller termination code display
that defines one of 48 locations in the Termination Code array that contains
information about a specific event.
See also
initialization
A process that prepares a storage system for use. Specifically, the system binds
controllers together as an operational pair and establishes preliminary data
structures on the disk array. Initialization also sets up the first disk group, called
the default disk group.
input/output See
module
intake temperature See
interface A set of protocols used components such as cables, connectors, and signal levels.
JBOD Just a Bunch of Disks. A number of disks connected to one or more controllers.
K Kilo. A scientific notation denoting a multiplier of one thousand (1,000).
KB Kilobyte. A unit of measurement defining either storage or memory capacity.
1.
2.
LAN
Local area network. A group of computers and associated devices that share a
common communications line and typically share the resources of a single
processor or server within a small geographic area.
laser
A device that amplifies light waves and concentrates them in a narrow, very
intense beam.
Last Fault View
An HSV Controller display defining the last reported fault condition.
Last Termination See LTEA.
Error Array
LED
Light Emitting Diode. A semiconductor diode used in an electronic display that
emits light when a voltage is applied to it. A visual indicator.
116 Glossary
host ports.
param and TC.
I/O module.
ambient temperature.
For storage, a KB is a capacity of 1,000 (10
For memory, a KB is a capacity of 1,024 (2
3
) bytes of data.
10
) bytes of data.