You can use interactive log backups to back up all the pages of the log area that have been written since the last log backup.
If you back up the log entries in version files, a version file is also generated for the last log segment, which may not be full.
You can perform interactive log backups in the operational state ONLINE or ADMIN.
You cannot perform any other backup while the interactive log backup is running.
A full data backup of the current database instance has been created at some point.
Use the Database Manager or, in SAP systems, the DBA Planning Calendar to perform interactive log backups.
Database Manager GUI, section Backup Processes
Database Manager CLI, Commands for Backing Up and Archiving
Database Administration in CCMS: MySQL
MaxDB, DB Planning
Calendar
Database Administration in CCMS: SAP liveCache,
Backing Up
liveCache