Hitachi Unified Storage VM User Manual

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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).
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JRE
Java Runtime Environment
JVM
Java Virtual Machine
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kVA
kilovolt-ampere

Hitachi Unified Storage VM Specifications

General

Brand	Hitachi
Model	Unified Storage VM
Category	Storage
Language	English