HP Data Protector A.06.11, Руководство по интеграции

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A range of snapshot types is available, with different
characteristics, depending on the arrays/techniques used. Such
replicas are dynamic and may be either virtual copies, still reliant
upon the contents of the source volumes, or independent exact
duplicates (clones), depending on the snapshot type and the
time since creation.
See also
replica and snapshot creation .
snapshot backup
(HP StorageWorks
See ZDB to tape , ZDB to disk , and ZDB to disk+tape .
VA and HP
StorageWorks EVA
specific term)
snapshot creation (HP StorageWorks VA and HP StorageWorks EVA specific term)
A replica creation technique, in which copies of source volumes
are created using storage virtualization techniques. The replicas
are considered to be created at one particular point in time,
without pre-configuration, and are immediately available for
use. However background copying processes normally continue
after creation.
See also
snapshot .
source (R1) device (EMC Symmetrix specific term) An EMC Symmetrix device that
participates in SRDF operations with a target (R2) device. All
writes to this device are mirrored to a target (R2) device in a
remote EMC Symmetrix unit. An R1 device must be assigned to
an RDF1 group type.
See also
target (R2) device .
source volume (ZDB specific term) A storage volume containing data to be
replicated.
sparse file A file that contains data with portions of empty blocks. Examples
are: a matrix in which some or much of the data contains zeros,
files from image applications, and high-speed databases. If
sparse file processing is not enabled during restore, it might be
impossible to restore this file.
split mirror (EMC Symmetrix and HP StorageWorks Disk Array XP specific
term) A replica created using split mirror techniques. Such a
replica provides an independent, exact duplicate, or clone of
the contents of the source volumes.
See also
replica and split mirror creation .
Glossary 478