Database Reference
In-Depth Information
Backup and recovery is one of the central themes in the
Oracle Database 12 c OCP exam. In Chapter 1, “Performing
Oracle User-Managed Backups,” and Chapter 2, “Performing
Oracle User-Managed Database Recoveries,” we talked about user-managed backup and
recovery in Oracle, and now we will move on to what is termed server-managed backups,
which are managed by RMAN. RMAN is a tool designed to back up and restore Oracle
databases easily. RMAN is like SQL*Plus in some ways.
First, RMAN is a client. It connects to the Oracle Database and issues a few commands
to the server, and the server actually does the work (hence the term server-based backups ).
The server reports the results to RMAN and RMAN reports those results to you.
In this chapter, we will introduce you to RMAN. We will discuss the features and con-
figuration of RMAN, including configuration of the Fast Recovery Area (FRA). We will also
discuss using RMAN to back up your Oracle Database. Later in this topic, we will discuss
restoring and recovering your backups using RMAN.
Exam objectives are subject to change at any time without prior notice and
at Oracle's sole discretion. Please visit Oracle's Training and Certification
website ( http://www.oracle.com/education/certification/ ) for the
most current exam-objectives listing.
Why Use RMAN?
RMAN has many capabilities to facilitate the backup and recovery process. It comes in both
web-based GUI and command-line versions. In general, RMAN performs and standardizes
the backup and recovery process, which can reduce mistakes made during this process. The
following are just a few of the exciting RMAN features:
It's free with the Oracle license.
You can perform full and incremental backups of the entire database, specific
tablespaces, and data files. You can also back up control files and archive logs.
RMAN offers persistent parameter configuration for easy backup and recovery.
RMAN offers automated backups of control files and spfiles.
You can validate your database backups without actually recovering your database.
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