Backup Medium 
A backup medium is assigned to each backup you perform. Backup media include files, tapes, autoloaders, and pipes.
Backup media can be defined before or during the backup process and they are defined separately for each individual database instance. You can define single backup media or combine media to form a group of parallel backup media.
· The recommended backup media for data backups are tape and autoloader. Data may also be backed up to pipes or files.
· Log backups are always made to files (version files).
For security reasons, archive your files or versions files.
You should only use pipes if you are working with an external backup tool.

In general, only archive files to a separate medium that can be stored in another location, where it is protected from fire and similar hazards.
You must follow the manufacturer's recommendations on how frequently backup media should be used.
When names are assigned, we differentiate between standard backup media and backup media for external backup tools.