The multidb.ini configuration file, located in the system database, is used to manage the multitenant database environment. It contains a specific section, [tenantinifilesblocklist], where a system administrator can list configuration parameters. Any parameter added to this blocklist cannot be modified by a tenant database administrator. This mechanism is crucial for preventing changes to critical system properties that could affect the stability, security, or performance of the overall SAP HANA system.

B. attributes.ini: This file is used for internal system attributes and is not the designated location for managing tenant configuration restrictions.

C. global.ini: This file sets system-wide default values for all services, but tenants can typically override these settings unless explicitly blocked via multidb.ini.

D. indexserver.ini: This file contains configuration parameters specific to the indexserver service; it does not control system-level restrictions imposed on tenants.

1. SAP HANA Administration Guide for SAP HANA Platform 2.0 SPS 07: In the section "Tenant-Specific Configuration"

it is detailed that the system administrator can restrict tenant administrators from changing certain parameters. The guide states

"You do this by adding the parameters to the tenantinifilesblocklist section of the multidb.ini file in the system database." (Found in Chapter 10: "Administering Multitenant Database Containers").

2. SAP HANA Security Guide for SAP HANA Platform 2.0 SPS 07: The guide discusses securing multitenant environments. It references the ability of the system administrator to enforce configuration settings on tenants

which is implemented through the blocklist mechanism in the multidb.ini file to maintain a secure and stable landscape. (Found in Chapter 6: "Securing Multitenant Database Containers").