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Virtual Device

Interface

(Microsoft SQL Server specific term) This is a SQL Server

programming interface that allows fast backup and restore of

large databases.

virtual disk (HP StorageWorks EVA specific term) A unit of storage allocated

from an HP StorageWorks Enterprise Virtual Array storage pool.

Virtual disks are the entities that are replicated using the HP

StorageWorks Enterprise Virtual Array snapshot functionality.

See also source volume and target volume.

virtual full backup An efficient type of synthetic backup where data is consolidated

using pointers instead of being copied. It is performed if all the

backups (the full backup, incremental backups, and the resulting

virtual full backup) are written to a single file library that uses

distributed file medium format.

Virtual Library

System (VLS)

A disk-based data storage device hosting one or more virtual

tape libraries (VTLs).

virtual server A virtual machine in a cluster environment defined in a domain

by a network IP name and address. Its address is cached by

the cluster software and mapped to the cluster node that is

currently running the virtual server resources. This way all

requests for a particular virtual server are cached by a specific

cluster node.

virtual tape (VLS specific term) An archival storage technology that backs

up data to disk drives in the same way as if it were being stored

on tape. Benefits of virtual tape systems include improved backup

and recovery speed and lower operating costs.

See also Virtual Library System (VLS) and Virtual Tape Library.

Virtual Tape

Library (VTL)

(VLS specific term) An emulated tape library that provides the

functionality of traditional tape-based storage.

HP Data Protector A.06.11 Recovery Guide

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