one or more of the virtual disks that are created and presented by the controller
pair.
host-side ports See host ports.
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 param and TC.
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
module
See I/O module.
intake temperature See ambient temperature.
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.
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 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
Error Array
See LTEA.
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.
Glossary116
To Next Page
Loading...
Need help?
General