RMAN Commands , 25 of 59

deviceSpecifier

Syntax

Text description of the illustration deviceSpecifier.gif

Purpose

A subclause specifying the type of storage for a backup or copy.

Keywords and Parameters

Syntax Element Description

Syntax Element	Description
`DISK`	Specifies disk storage device.
`'media_device'`	Specifies a sequential I/O device or access method for storage. The syntax and semantics of sequential I/O device types are platform-specific. Example values are `sbt` and `sbt_tape` (with or without quotes). These values are synonymous. The `media_device` variable specifies a media manager. Media device names are case insensitive. The `sbt` variable is legal as input, but RMAN output always displays its synonym `sbt_tape`. It is stored in the catalog as `sbt_tape` for backward compatibility.

DISK

Specifies disk storage device.

'media_device'

Specifies a sequential I/O device or access method for storage. The syntax and semantics of sequential I/O device types are platform-specific. Example values are sbt and sbt_tape (with or without quotes). These values are synonymous. The media_device variable specifies a media manager. Media device names are case insensitive. The sbt variable is legal as input, but RMAN output always displays its synonym sbt_tape. It is stored in the catalog as sbt_tape for backward compatibility.

Examples

Allocating a Tape Channel: Example

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

ALLOCATE CHANNEL FOR MAINTENANCE DEVICE TYPE sbt;

Backing Up to Disk: Example

This example backs up the database to disk:

BACKUP DEVICE TYPE DISK DATABASE;

Restoring from Tape: Example

This example restores archived logs from tape:

RESTORE DEVICE TYPE sbt ARCHIVELOG ALL;