NetBackup™ for Oracle Administrator's Guide

Backup Selections tab

The Backup Selections tab lets you change the type of Oracle backup. You can back up the whole database, only the tablespaces, only the data files, the Fast Recovery Area (FRA), Database Backup Shares, or the Whole Database - Datafile Copy Share. The following is the selection list:

By default, the Whole database option is selected and the backup selections contain the directive WHOLE_DATABASE. If you choose one of the partial options (tablespaces or data files), you must click the New button to display a new panel. The panel contains a list of instances from which you can select tablespaces or the data files that the new policy can back up.

When you back up tablespaces or data files, this selection applies across all the instances and PDBs that are selected in the policy. If a tablespace is selected for one instance or PDB, that same tablespace is backed up for all instances and PDBs in the policy.

If you set up an OIP and that policy contains a CDB with PDBs, the CDB$ROOT is automatically included in the backup. If the policy contains a PDB that is not found when a backup is performed, an error appears in the Activity Monitor. The Administration Console displays a status of either 5421 or 5422.

If you select the Database Backup Shares option, the directive ALL_DATABASE_BACKUP_SHARES is automatically added to the selection list. Using this directive, the policy backs up all the shares that are used on all appliances per instance. Optionally, you can click Browse to display a new panel that contains a list of appliance shares. The appliance shares are where Oracle DBAs have created backups for the instances configured in the policy. Select one or more shares that the new policy should back up. Also, you can click New and add an appliance share to the policy manually.

When you back up appliance shares for multiple instances, the Database Backup Shares selection applies across all the instances that are selected in the policy. If a share is selected for one instance, the data in that share is backed up for all the instances in that policy.

The Whole Database - Datafile Copy Share option allows the NetBackup Administrator to choose an appliance share as the destination for the first backup copy. When the policy runs the first time, an RMAN script is generated that creates a full set of Oracle data file copies. The copies reside in the appliance share. The next time that the full schedule runs, the backup is accelerated if the Use Accelerator option is selected. The RMAN script that is generated performs an incremental backup and the changed blocks are merged into the data files. This incremental backup creates an updated full set of Oracle data file copies. After the new full copy is created in the appliance share, an SLP is used to make additional copies of the full backup. The first copy is always a remote_vxfs snapshot.

The Use Accelerator feature is automatically selected when you configure an OIP with the Whole Database - Datafile Copy Share option. The first time that the full schedule runs it creates a full set of data file copies. After the first full schedule, only the changes are backed up as a backup set and merged with the existing full backup. Basically, an incremental merge is performed and Oracle's Block Change Tracking feature should be enabled for faster incremental backups. Only one share can be set up so if you have two or more instances, all instances reside in the same share.