Loading...

Oracle SnapProtect - Backup Copy

A backup copy operation provides the capability to copy snapshots of the data to any media. It is useful for creating additional standby copies of data and can be performed during the IntelliSnap backup or at a later time.

The IntelliSnap backup copy operation supports the following interfaces:

  • File System Backup Copy
  • RMAN backup copy
  • Volume Copy

You can choose the interface based on your requirements and resource availability.

You can perform the same type of restores for all types of backup copies.

For more information on backup copies, see Backup Copy for SnapProtect Backup.

Note:  If you want to use the Oracle RMAN backup copy option by using a proxy server, you must contact Oracle for their required licensing.

File System Backup Copy

The following rules apply to the File System Backup Copy interface. The SnapProtect software:

  • Considers the job type as FULL
  • Mounts the snapshots
  • Clones the snap device and creates the volume group and logical volumes to mount the snapshot
  • Queries the index created by the snap, to identify files to backup to tape, and generates a collect file for the backup copy
  • Backs up the files to tape or magnetic library
  • Unmounts the snapshot
  • Archives the index created for the backup copy operations

RMAN Backup Copy

Backup Copy on the Source Client

If the source client performs the backup copy, the SnapProtect software uses the "backup datafilecopy" command after the cataloging of all the datafiles.

For archive logs, the SnapProtect software backs up the logs to the snap mount location by using the "backup archivelog to /path_to_archive_log/archivelogs" command.

Backup Copy on the Proxy

The SnapProtect software mounts the data snapshot in the same location on the proxy and use the standard “backup database” command while it is connected to a recovery catalog.

For archive logs, the SnapProtect software backs up the logs to the snap mount location by using the "backup archivelog to /path_to_archive_log/archivelogs" command.

Volume Copy

For full backups, the SnapProtect software backs up the blocks that make up the snapped volume

For incremental backups, the SnapProtect software backs up the blocks that have changed since the last backup.

For more information on block-level backup copies, see Block-Level Backups.