Restoring with External Backup Tools 
The Database Manager GUI supports the use of the following
external backup tools for restores:

If you want to use an external backup tool that is not included on this list, contact
SAP DB Support.
Using the backup tools
Start the restore operation from the Database Manager GUI. The naming conventions for
external backup media enable the program to recognize the external backup tool and start it.
Procedure
When you use an external backup tool to restore backups, the
external backup IDs of the required backups are automatically defined by the Database Manager GUI, displayed so that the operator can check them, and used during the restore process. The operator does not need to explicitly determine or specify the external backup IDs.
The number of media in a
group of parallel backup media must correspond to the number of media used to create the backup.
Follow the procedure for the relevant restore process: