Recovery Manager

(Oracle specific term) An Oracle command-line interface that

(RMAN)

directs an Oracle Server process to back up, restore, or recover

 

the database it is connected to. RMAN uses either the recovery

 

catalog or the control file to store information about backups.

 

This information can be used later in restore sessions.

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

(HP StorageWorks Disk Array XP specific term) The Remote

Unit (RCU)

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

(Windows specific term) A Windows service used for managing

Storage

removable media (such as tapes and disks) and storage devices

Management

(libraries). Removable Storage allows applications to access

Database

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 or 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 snapclone), or a virtual copy (for

 

example, a snapshot). From perspective of a basic operating

 

system, the complete physical disk containing backup objects

Concepts guide

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