HP SAN Virtualization Services Platform User Manual

Page 93

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Volume Shadow
Copy Service

A backup infrastructure for the Microsoft Windows Server 2003/2008 operating
systems, as well as a mechanism for creating consistent point-in-time copies of
data known as shadow copies.

VSM

Virtualization Services Manager. Short for the HP StorageWorks SAN
Virtualization Services Platform Manager application.

VSM API virtual
disk

A virtual disk that enables a host to direct VSM CLI commands to a VSM server
through a DPM. May also be seen as SANAPI on the VSM GUI Maintenance
screen.

VSM client

The management interface for VSM servers. The VSM client runs on any PC
connected to a VSM server workstation through an IP connection.

VSM GUI

Graphical user interface used to manage the HP StorageWorks SAN Virtualization
Services Platform environment.

VSM server

VSM software that runs on a dedicated appliance connected to a SAN fabric
and manages and controls all storage systems on the SAN. A VSM server
virtualizes the storage space on the storage systems, creates storage pools and
virtual disks, and provides agents with virtual disk information. The VSM server
also moves data in snapclone, migration, and asynchronous mirroring operations.

VSS

See

Volume Shadow Copy Service

.

VSS freeze

A period of time during the shadow copy creation process when all services
(writers) have flushed their writes to the virtual disks and are not initiating
additional writes.

VSS thaw

The completion of a VSS shadow copy freeze.

WWNN

World Wide Node Name. The globally unique identifier for a system containing
Fibre Channel ports.
A WWN is a 64–bit value, typically represented as a string of 16 hexadecimal
digits.

WWPN

World Wide Port Name. The globally unique identifier for an individual Fibre
Channel port.
A WWPN is a 64–bit value, typically represented as a string of 16 hexadecimal
digits.

zone

A collection of devices or user ports that are permitted to communicate with each
other through a fabric. Any two devices or user ports that are not members of
at least one common zone are not permitted to communicate with each other.

HP StorageWorks SAN Virtualization Services Platform Data Path Module User Guide

93

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