When backing up to a backup medium of the file type, the database system backs up the log entries from the log areas to version files. One version file is generated for each log segment of the log area.
The name of the version files consists of a file name (specified when the backup medium was defined) and a sequential number assigned by the database system (for example, logfile.001).
You have to archive version files at regular intervals.
See also:
Concepts of the Database System,
Database Manager CLI, Further Commands for Backing Up
Database
Management in CCMS, Archiving Version
Files