HP XP Command View Advanced Edition Software User Manual

Page 177

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SSD

Solid-state drive

Thin Provisioning
(THP)

Functionality that allocates virtual volumes to a host, and uses the physical
capacity this is necessary according to the data write request.
This manual refers to the storage area that is created by using THP as a THP
pool, an actual volume that is one of the volumes making up a THP pool as a
THP pool volume, and a virtual volume that is created by a THP pool as a THP
volume.

THP/Smart pool

An area where THP/Smart pool volumes (actual volumes) are registered. When
a THP/Smart volume (virtual volume) has a write operation from a host, that data
is stored in a THP/Smart pool volume.

THP/Smart pool
volume

An actual volume that is one of the volumes making up a THP/Smart pool.

THP/Smart volume A virtual volume created from a THP/Smart pool (that is, is associated with a

THP/Smart pool).

tiered storage

A layered structure of performance levels, or tiers, that matches data access
requirements with the appropriate performance tiers.

unallocated
volume

A volume (LDEV) for which no host paths are assigned.

URL

Uniform Resource Locator

user group

A group of users who use the same resources and have the same operation(s)
permission (see “role”) for the resources. Externally authenticated groups can be
used as user groups.

VMA

Volume management area

VOLSER

The label of a volume assigned by the mainframe host.

volume (vol or
VOL)

A name for the logical device (LDEV), or logical unit (LU), or concatenated LDEVs,
that are created in a storage system that have been defined to one or more hosts
as a single data storage unit.

web client

An application that is used on a client machine to access a server on which
management software is installed. A web client contains two parts: dynamic web
pages and the web browser.

WWN

World wide name. A unique identifier for an open systems host. It is typically a
node name that is a 64-bit address assigned to HBAs (host bus adapters) or
storage system ports that define the endpoints of a fibre-channel connection
between storage and hosts for purposes of volume input/output.
WWN is essential for defining the SANtinel™ parameters because it determines
whether the open systems host is to be allowed or denied access to a specified
logical unit or a group of logical units.

WWPN

Worldwide port name

XML

Extensible Markup Language

User Guide

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