HANA Database Administrator (DBA) Practice Exam

The HDBdaemon is indeed responsible for managing the lifecycle of the SAP HANA services, including handling automatic restarts of any services that might fail. It acts as a supervisor for the database and monitors the health of the various instances and services associated with the SAP HANA system. When a service fails, HDBdaemon detects this failure and initiates the restart process, ensuring high availability and minimal downtime for the database environment.

Understanding the function of HDBdaemon is crucial for SAP HANA administrators, as it plays a fundamental role in maintaining system stability and performance. Other services have different roles; for instance, sapstart is generally more focused on starting and stopping instances rather than managing failures. The sapstartsrv service is responsible for starting and stopping database services but does not automatically restart them upon failure. HDBservice refers to the individual database services but does not encompass overall management or monitoring responsibilities. Therefore, the responsibility of automatic restart of failed services specifically lies with the HDBdaemon.