Archiving the Version Files of the Log Area 
Use
To increase the security of your database system, we recommend that you archive the version files created during
Log Backup and stored on the hard disk of your system at regular intervals (
Version Files). To do this, copy the version files to another backup medium. (See also:
Backup Strategy)
You can perform this process manually or use
external backup tools.There are DBM commands available for archiving with external backup tools, with which you can copy the version files once or several times to external backup media.
Archiving the Version Files Once Archiving the Version Files More Than Once