Virtual library system (vls), Virtual tape – HP A.06.11 User Manual

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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.
See also

Virtual Library System (VLS)

.

VMware
management client

(VMware integration specific term) The client that Data Protector
uses to communicate with VMware Virtual Infrastructure. This
can be a VirtualCenter Server system (VirtualCenter environment)
or an ESX Server system (standalone ESX Server environment).

volser

(ADIC and STK specific term) A VOLume SERial number is a
label on the medium to identify the physical tape used in very

Glossary

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