HP B6960-96035 Concepts Manual page 382

parallel restore
parallelism
physical device
post-exec
pre- and post-exec
commands
prealloc list
382 Glossary
• COPY - The mirrored pair is currently re-synchronizing. Data
is transferred from one disk to the other. The disks do not
contain the same data.
• PAIR - The mirrored pair is completely synchronized and
both disks (the primary volume and the mirrored volume)
contain identical data.
• SUSPENDED - The link between the mirrored disks is
suspended. That means that both disks are accessed and
updated independently. However, the mirror relationship is
still maintained and the pair can be re-synchronized without
transferring the complete disk.
Restoring backed up data to multiple disks at the same time (that
is, in parallel) by running multiple Disk Agents, that receive data
from one Media Agent. For the parallel restore to work, select
data that is located on different disks or logical volumes and
during backup, the data from the different objects must have
been sent to the same device using a concurrency of 2 or more.
During a parallel restore, the data for multiple objects selected
for restore is read from media at the same time, thereby
improving performance.
The concept of reading multiple data streams from an online
database.
A physical unit that contains either a drive or a more complex
unit such as a library.
A backup option that executes a command or script after the
backup of an object or after the entire session completes.
Post-exec commands are not supplied by Data Protector. You
need to create your own. They can be written as executables
or batch files on Windows and as shell scripts on UNIX.
See also pre-exec.
Pre- and post-exec commands are used to perform additional
action before and after a backup or restore session. They are
not supplied by Data Protector. You need to create your own
commands. They can be written as executables or batch files
on Windows and as shell scripts on UNIX.
A subset of media in a media pool that specifies the order in
which media are used for backup.