C_DBADM_2404 Exam Dumps - SAP Certified Associate Questions and Answers

For a tailored data center integration (TDI) installation of a productive SAP HANA database system, it is essential to size the following hardware KPIs:A. DRAM required for the static data memory area, as it determines the amount of main memory needed to hold the active dataset of the SAP HANA database in memory for fast processing.B. Total disk space required for the log volume, which is crucial for maintaining the log entries that record all transactions and database changes, necessary for recovery and durability.Persistent memory (PMEM) for backups and network bandwidth for the storage zone, while important in their own right, are not directly related to initial sizing criteria for DRAM and disk space as per SAP HANA TDI guidelines.References= SAP HANA Tailored Datacenter Integration (TDI) guide which includes details on sizing and planning infrastructure for deploying SAP HANA.

SAP HANA Architecture

When creating an SAP HANA Cloud, data lake instance, you can control the following attributes:

• Automatic backup creation: This feature allows you to configure the system to automatically manage the creation of backups, ensuring data durability and simplifying disaster recovery processes.
• Availability zone: You can select the geographic availability zone where the data lake is hosted to meet local regulations and optimize latency for users and applications.
• Number of coordinators: Adjusting the number of coordinators can optimize the processing and management of queries and transactions, directly impacting the performance of the data lake.

References=These configuration options are standard when setting up an SAP HANA Cloud, data lake instance, as detailed in the SAP HANA Cloud provisioning and management guides available on the SAP Help Portal.

Provisioning SAP HANA

The storage tier used to manage rarely changing, persistent data within SAP HANA is the Native Storage Extension (NSE). NSE is designed to:

• Native storage extension (C): Extend the in-memory capabilities of SAP HANA to include disk-based storage, effectively managing larger data volumes that do not fit into memory or do not require the high performance of in-memory processing. NSE allows for cost-effective data management and storage optimization by placing less frequently accessed, non-volatile data on lower-cost, slower disk storage while maintaining seamless access and integration with the in-memory data. This capability supports scenarios where data is infrequently accessed but still needs to be readily available within the SAP HANA environment, without the need for external storage solutions like data lakes (B) or specialized hardware such as WORM devices (D).

References= SAP HANA documentation on data tiering options provides insights into how NSE works as an integral part of the data management strategy, focusing on cost-efficiency and resource optimization.

User Management

You can resume the failed recovery of your productive SAP HANA tenant database in the following situations:

• An aborted recovery of a delta data backup: Resuming from a delta backup is possible because these backups capture changes since the last full or another delta backup, allowing the recovery process to continue from the last successful point.
• An aborted recovery of a log backup: Log backups contain all the transactions since the last log or data backup. If the recovery from these backups is interrupted, it can be resumed because the log contains all necessary information to bring the database to a consistent state up to the point of failure.

References=SAP HANA backup and recovery documentation explains the mechanisms and capabilities of the database's recovery features, including scenarios where recovery processes can be resumed after interruption.

Backup and Recovery

For diagnosing and analyzing errors in SAP HANA database trace files, the appropriate tools are the SAP HANA database explorer and the full system information dump. The SAP HANA database explorer allows users to browse, search, and download trace files, which is essential for detailed error analysis. On the other hand, a full system information dump provides a comprehensive snapshot of the system's state at a point in time, including detailed diagnostic information that can be crucial for troubleshooting complex issues not immediately apparent from the trace files alone.References= SAP HANA documentation on trace file analysis and system monitoring tools.

Monitoring and Troubleshooting

To use multi-environment database administration tools for administering an SAP HANA Cloud, SAP HANA database instance, the required SAP BTP entitlement service plans include:

• hana: This plan provides the core database services and capabilities necessary for database operation and management.
• multi-environment tools: This plan specifically includes tools that are designed to operate across different database environments, facilitating cross-environment management and integration.

These plans ensure access to the necessary tools and resources for effective database administration across multiple environments.

References=SAP Business Technology Platform documentation and service plan descriptions typically outline the required entitlements and their respective capabilities, emphasizing the importance of specific service plans for administrative tasks.

Database Administration

The statement library in the SAP HANA environment is designed to store your personal SQL scripts and the SAP SQL statement collection. Your personal SQL scripts include any custom queries you have written and may need to reuse or reference in the future. The SAP SQL statement collection includes optimized and commonly used SQL statements provided by SAP, which are beneficial for enhancing performance and achieving best practices in database management.References= SAP HANA SQL and System Views Reference Guide.

Monitoring and Troubleshooting

To stop the SAP HANA database system using the SAP HANA cockpit, you need credentials associated with:

• sap: This OS level user has the necessary permissions to stop and start the SAP HANA system.
• Root: Root user access is typically required for administrative actions at the operating system level.
• adm: This is the SAP system administration user who has the necessary privileges to manage the SAP HANA instance.

References=The use of these user credentials in stopping the SAP HANA system is standard practice, as outlined in SAP HANA technical operation manuals and security guides.

Database Administration

In SAP HANA Cloud, native storage extension utilizes dynamic tiering. This approach integrates dynamic tiering by extending in-memory tables with disk-based storage, allowing data to be managed across different storage tiers. Dynamic tiering is particularly effective for managing large volumes of data where not all data needs to reside in memory, thus balancing performance with cost efficiency.References= SAP HANA Cloud documentation on storage and data management, which explains the functionality and benefits of using dynamic tiering within the database system.

SAP HANA Architecture

In the SAP HANA cockpit, from the SYSTEMDB Manage Services app, you can stop the following services:

• Web dispatcher: Manages HTTP traffic to SAP HANA, and stopping this service affects access via web-based applications.
• Compile server: Supports the compilation of SQLScript functions and stored procedures, and can be managed directly from the SYSTEMDB.

References=Details on managing SAP HANA services through the SAP HANA cockpit are provided in SAP HANA administration guides and official documentation.

Database Administration