Hitachi Unified Storage VM, Product Overview Manual

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C A K D E F G H I J L M N O P Q R S T U V W X Y # B Z
A B C D F H J K L M P R S V
Hitachi Unified Storage VM Product Overview Guide
Glossary–2
D
disk array
Disk array, or just array, is a complete storage system, including the
control and logic devices, drives, connecting cables, and racks.
drive box
The hardware component of the Unified Storage VM that houses disk
drives and/or flash drives.
dynamic provisioning
An approach to managing storage. Instead of “reserving” a fixed amount
of storage, it removes capacity from the available pool when data is
actually written to disk. Also called thin provisioning.
F
flash drive
A data drive that uses a solid-state memory device instead of a rotating
hard disk drive to store information.
free capacity
The amount of storage space (in bytes) that is available for use by the
host system(s).
H
host I/O module
The hardware component that processes channel commands from hosts
and manages host access to cache. A host I/O module is also referred
to as a channel adapter (CHA).
J
JRE
Java Runtime Environment
JVM
Java Virtual Machine
K
kVA
kilovolt-ampere