When does the SAP HANA system perform a regular log backup after switching to normal log mode?

The answer relates to how SAP HANA manages its log backups when operating in normal log mode. In this mode, the system is designed to maintain an efficient and timely logging process to ensure data integrity and recovery capabilities.

A regular log backup is performed after the configured time threshold has been exceeded. This means that instead of relying on specific transactional events or the size of the log segments, the SAP HANA system adheres to a predefined schedule to ensure that log backups occur consistently and prevent data loss. The time threshold can be set based on the organization’s data recovery objectives and can be adjusted to balance between performance and data safety.

This approach enhances the system's ability to efficiently manage log data without overwhelming system resources. The other options, although they provide different scenarios related to log management, do not align with the scheduled nature of regular log backups in normal log mode. By focusing on a time-based mechanism, organizations can ensure more predictable and reliable backup operations.