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G-34
Glossary
• 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
resynchronized without transferring
the complete disk.
parallel restore
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.
parallelism
The concept of reading multiple data
streams from an online database.
physical device
A physical unit that contains either a
drive or a more complex unit such as a
library.
post-exec
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
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.
prealloc list
A subset of media in a media pool that
specifies the order in which media are
used for backup.
pre-exec
A backup option that executes a
command or script before the backup of
an object or before the entire session is
started. Pre-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 post-exec.
Primary Volume (P-VOL) (HP
StorageWorks Disk Array XP specific
term)