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G-37
Glossary
recycle
A process that removes the data
protection from all backed up data on a
medium, allowing Data Protector to
overwrite it during one of the next
backups. Data that belongs to the same
session(s) but resides on other media is
also unprotected. Recycling does not
actually alter the data on the medium.
redo log (Oracle specific term)
Every Oracle database has a set of two
or more redo log files. The set of redo
log files for the database is known as the
database's redo log. Oracle uses the redo
log to record all changes made to data.
Remote Control Unit (HP
StorageWorks Disk Array XP specific
term)
The Remote Control Unit (RCU) acts as
a slave of an MCU in a CA
configuration. In bidirectional
configurations, the RCU can act as an
MCU.
Removable Storage Management
Database (Windows specific term)
A Windows service used for managing
removable media (such as tapes and
disks) and storage devices (libraries).
Removable Storage allows applications
to access and share the same media
resources.
reparse point (Windows specific term)
A system-controlled attribute that can be
associated with any directory or file.
The value of a reparse attribute can have
user-controlled data. The format of the
data is understood by the application
that stored the data and a filesystem
filter that was installed to interpret the
data and process such files. Whenever
the filesystem encounters a file with a
reparse point, it attempts to find the
filesystem filter associated with the data
format.
replica (ZDB specific term)
An image, at a particular point in time,
of the data in source volumes that
contain user-specified backup objects.
Depending on the hardware/software
with which it is created, the image may
be an independent exact duplicate
(clone) of the storage blocks at the
physical disk level (for example, a split
mirror), or a virtual copy (for example, a
snapshot). From a host’s perspective, on
a basic UNIX or Windows system, the
complete physical disk containing a
backup object is replicated. However, if
a volume manager is used on UNIX, the
whole volume/disk group containing a
backup object is replicated.
See also snapshot, snapshot creation,
split mirror, and split mirror creation.