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Oracle IntelliSnap - 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 IntelliSnap 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 Commvault software does the following things:

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

RMAN Backup Copy

Backup Copy on the Source Client

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

For archive logs, the Commvault 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 Commvault 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 Commvault 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 Commvault software backs up the blocks that make up the snapped volume.

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

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

Note: Use disk libraries for block-level backup operations as these backups are prone to random reads which are not suitable for tape libraries.

SP File Considerations

If you did not include the SP file in the subclient content (Subclient Properties dialog box, Content tab, Back up SP file check box), the software does not back up the SP file in a backup copy operations and the proxy instance starts by using the SP file that is located in the $ORACLE_HOME/dbs directory (UNIX) or %ORACLE_HOME%\database folder (Windows).

Last modified: 1/13/2020 9:57:22 PM