1. Backup and Recovery Reference
  2. RMAN Subclauses
  3. deviceSpecifier

4.7 deviceSpecifier

Purpose

Use the deviceSpecifier subclause to specify the type of storage for a backup.

Syntax

deviceSpecifier::=

Description of devicespecifier.eps follows
Description of the illustration devicespecifier.eps

Semantics

Syntax Element Description

DISK

Specifies a disk storage device (see Example 4-16).

media_device

Specifies a sequential I/O device or access method for storage (see Example 4-15).

The media_device variable specifies a case-insensitive name for a media manager. The syntax and semantics of sequential I/O device types are platform-specific. The most common value is sbt or sbt_tape (which are synonymous values).

Note: RMAN stores the value sbt in the recovery catalog as sbt_tape for backward compatibility.

Examples

Example 4-15 Allocating a Tape Channel

This example allocates a maintenance channel for a media management device: 

ALLOCATE CHANNEL FOR MAINTENANCE DEVICE TYPE sbt;
CROSSCHECK BACKUP;
RELEASE CHANNEL;

Example 4-16 Backing Up the Database to Disk

This example backs up the database to disk: 

BACKUP DEVICE TYPE DISK DATABASE;