Creating a Subclient for Oracle Offline Backups

During an offline backup, the database is shutdown and is not available for use. Since incremental backups require access to various tablespaces and datafiles, it is always recommended that you perform a full backup of the database when it is offline. The full backup includes all the datafiles, tablespaces, and control file of the Oracle database. Note that, offline backups do not include the archived log files.

Offline backups can be performed when the database is in offline or online mode. If the database is online, it shuts down the database, performs the backup and then brings up the database back.

In order to backup the Oracle database when it is offline, you need to create a separate user-defined subclient for offline backup. Make sure that the database is in the MOUNT mode during the backup.

Before You Begin

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


  1. From the CommCell Browser, expand Client Computers > client > Oracle.
  2. Right-click the instance, point to All Tasks and then click New Subclient.

    The Create New Subclient dialog box appears.

  3. On the General tab, in the SubclientName box, enter a name for the subclient.
  4. On the Content tab, specify whether the backup is a full backup:
    • Select the Data check box.
    • Select the Offline Database option.
  5. On the Storage Device tab from the Data Storage Policy list, select the storage policy that the software uses for data backups.
  6. Configure the IntelliSnap options.
    1. On the IntelliSnap Operations tab, select the IntelliSnap check box.

      A message appears that tells you that the next backup will be a full backup.

    2. Click OK.
    3. From the Available Snap Engines list, select the appropriate engine.

      Note: If your Oracle database is hosted by an Amazon EC2 account, you must select Amazon as the Available Snap Engine value. For information on how to manage the Amazon array, see Getting Started for Amazon.

    4. To use a proxy server, from the Use Proxy list, select the appropriate MediaAgent.

      This is the MediaAgent that is used to perform the IntelliSnap backup copy operations. For information on how to configure a proxy server for backup copy operations, see Configuring Proxy Clients for Backup Copy Operations.

      Note: When you perform an IntelliSnap backup using a proxy, make sure that the operating system on the proxy server is either same version or later than the operating system on the client computer.

    5. To have the backup copy operation fall back to the source if the proxy is unreachable, select the Use source if proxy is unreachable check box.

      This prevents the interruption of the backup schedule when the proxy cannot be reached.

    6. Determine the copy option.

      For more information on the backup copy options, see Oracle IntelliSnap - Backup Copy.

      • To use the File system copy, select File System.
      • To use the RMAN backup copy, select RMAN.
      • To use Volume Copy, select Volume Copy (Block-Level Backup - Support Instant Database Recover).

        Note: You must select this option when you want to use the Instant Application Recovery feature.

        The option is automatically selected when you select the Snap Image Copy check box.

    7. Optional: To perform an integrity check of the hardware, select the Enable Snap Integrity Check check box.
  7. Click OK to close the Creating New Subclient dialog box.

Last modified: 8/28/2018 2:51:23 PM