SAP HANA Database Update Methods
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Questions and Answers

Which tool is used to update the SAP HANA database and client software?

  • SAP HANA Database Lifecycle Management Tool (HDBLCM) (correct)
  • SAP HANA On-Site Configuration Tool
  • SAP HANA Unified Installer
  • SUM for HANA

Besides the SAP HANA database and client, what other system components can the HDBLCM update?

  • Third-party database connectors
  • Application Function Libraries (AFL) and product-specific AFLs (correct)
  • Operating system kernel patches
  • Network configuration settings

Which of the following methods is NOT a way to download the required components for SAP HANA database update?

  • Manually via the SAP Software Download Center
  • Directly from the database server's file system (correct)
  • Using the Maintenance Planner (MP)
  • Using the Download Components option in SAP HANA cockpit

Which of the following is recommended in order to minimize the risk of update failure due to network glitches?

<p>Performing an SAP HANA system update from a local host (C)</p> Signup and view all the answers

Which command-line tool is used for SAP HANA database lifecycle management?

<p>hdblcm (D)</p> Signup and view all the answers

What is the main function of the HDBLCM located on the SAP HANA installation media?

<p>To install and update an SAP HANA database and its core components (C)</p> Signup and view all the answers

Which tool is NOT replaced by the SAP HANA lifecycle management tools?

<p>The SAP HANA Cockpit (D)</p> Signup and view all the answers

Which statement best describes the relationship between the installation media HDBLCM and the resident HDBLCM?

<p>Both are required, and perform different administrative tasks. (C)</p> Signup and view all the answers

What is the role of the SAP Host Agent in relation to the SAP HANA database lifecycle manager Web user interface?

<p>It hosts the Web user interface and manages artifact deployment. (A)</p> Signup and view all the answers

What type of certificate is required for communication between the Web browser and SAP Host Agent?

<p>Secure Sockets Layer (SSL/TLS) certificate. (D)</p> Signup and view all the answers

What should you do if the SAP HANA database lifecycle manager does not operate as expected?

<p>Check the logs for errors and consider updating the tool. (C)</p> Signup and view all the answers

Which user privileges are required to start hdblcmweb?

<p>System administrator user adm privileges. (D)</p> Signup and view all the answers

Where can the most recent log file generated by the SAP HANA database lifecycle management tools be found?

<p>/var/tmp/hdblcm.log. (C)</p> Signup and view all the answers

What is the primary function of the resident HDBLCM within an SAP HANA database?

<p>To handle administrative tasks and install/update SAP HANA components. (C)</p> Signup and view all the answers

Which of the following actions is performed by the resident HDBLCM when updating the SAP HANA database?

<p>Points to a downloaded and unpacked installation/update kit. (B)</p> Signup and view all the answers

What is the critical pre-update process to be executed before commencing an update of SAP HANA components?

<p>Confirming there are no read or write operations running on the database. (C)</p> Signup and view all the answers

Why is it most recommended to perform SAP HANA system updates outside of standard business operations?

<p>Because the SAP HANA system is restarted during the update. (A)</p> Signup and view all the answers

What two methods mentioned in the content, are stated to reduce business downtime during system updates?

<p>Phased system update and Near Zero Downtime method. (A)</p> Signup and view all the answers

What is the primary advantage of utilizing the phased system update method?

<p>It allows the SAP HANA system to remain online during the initial phase of the update. (B)</p> Signup and view all the answers

According to the content, how can the required time for an update be reliably estimated?

<p>It is the sum of the database shutdown time and database start time, plus 20 minutes. (B)</p> Signup and view all the answers

Which parameter needs to be set when using the HDBLCM tool in order to execute a phased update?

<p>--prepare_update (C)</p> Signup and view all the answers

What primarily influences the duration of the SAP HANA database restart time during an update process?

<p>The size of the row store and the I/O performance of the storage being used. (C)</p> Signup and view all the answers

What user interface is displayed when starting the SAP HANA lifecycle management tool from the SAP HANA cockpit?

<p>A user-friendly SAP Fiori interface. (D)</p> Signup and view all the answers

What is the main action performed during Phase 2 of the HDBLCM update process?

<p>Performing a software switch and entering downtime (C)</p> Signup and view all the answers

Which of the following is NOT a prerequisite for conducting a phased update?

<p>The system must be disconnected from the network (A)</p> Signup and view all the answers

When using the SAP HANA database lifecycle manager, which interface can you use to perform the update resume phase?

<p>Any of the three user interfaces: hdblcmgui, hdblcm, or hdblcmweb (D)</p> Signup and view all the answers

Why is it recommended to perform an SAP HANA system update from a local host?

<p>It reduces the risk of a failed update due to network issues. (C)</p> Signup and view all the answers

What must be done to component packages after downloading them but before starting the system update?

<p>They need to be extracted. (C)</p> Signup and view all the answers

What could happen if the SAP HANA database server is not running during the update?

<p>Errors in the system configuration may occur. (D)</p> Signup and view all the answers

During which stage does the business downtime officially begin when using a phased update?

<p>When the second phase of the update is started (B)</p> Signup and view all the answers

Which of the following steps is unnecessary for preparing an update via the SAP HANA cockpit?

<p>Configuring network settings (A)</p> Signup and view all the answers

What is the role of the command-line interface in the HDBLCM update process?

<p>It can be used to execute any phase of the update process. (B)</p> Signup and view all the answers

Which of the following is a method to extract component files necessary for the update?

<p>Manually making local package directories recognized by the update tool (B)</p> Signup and view all the answers

What must be done to avoid overwriting the SIGNATURE.SMF file when extracting multiple components SAR into a single directory?

<p>Transfer SIGNATURE.SMF to the appropriate subfolder before the next extraction. (C)</p> Signup and view all the answers

What is a risk when transferring executable code and software artifacts over multiple channels?

<p>Opportunity for tampering at any stage of transfer. (A)</p> Signup and view all the answers

Why is the authenticity verification switched off by default for the non-resident hdblcm?

<p>The installation kit is seen as untrusted. (C)</p> Signup and view all the answers

What command-line parameter can be used to force authenticity verification of additional components?

<p>--verify_signature (B)</p> Signup and view all the answers

What happens when installing or updating additional components in the resident hdblcm with an authenticated signature?

<p>The verification is enabled by default. (B)</p> Signup and view all the answers

Which type of attacks can the authenticity verification help prevent?

<p>Man-in-the-middle attacks. (B)</p> Signup and view all the answers

What should you do if you are unsure whether your SAP HANA system was updated with a valid signature?

<p>Always pass the --verify_signature parameter. (D)</p> Signup and view all the answers

What is required for SAP HANA lifecycle management tools to verify software authenticity?

<p>The presence of the SIGNATURE.SMF file. (B)</p> Signup and view all the answers

In the context of SAP HANA, what does the term 'lifecycle management' refer to?

<p>Overseeing the deployment and maintenance of SAP software products. (C)</p> Signup and view all the answers

What implication does having multiple write access users on a common share have on software security?

<p>Increases the risk of unauthorized changes to software packages. (A)</p> Signup and view all the answers

Flashcards

What tool is used to update SAP HANA components?

The SAP HANA database lifecycle management tool (HDBLCM) is used to update SAP HANA system components, like the SAP HANA database and client software.

What features are included in SAP HANA 2.0 SPS02?

SAP HANA 2.0 SPS02 provides new features like multitenant database containers.

How can you download SAP HANA 2.0 SPS02?

SAP HANA 2.0 SPS02 can be downloaded through the SAP Software Download Center, SAP HANA cockpit, or Maintenance Planner.

What are the three options for using HDBLCM?

The HDBLCM offers three options: hdblcm (command line), hdblcmgui (X Window), and hdblcmweb (browser).

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How is hdblcmweb started?

The hdblcmweb is started automatically by the SAP Host Agent when an action is triggered from the Web user interface.

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What does HDBLCM replace?

HDBLCM replaces older SAP HANA management tools like the unified installer, on-site configuration tool, SUM for HANA, hdbinst, hdbupd, and lifecycle manager tools.

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What does the HDBLCM on the installation media do?

The HDBLCM on the installation media updates the SAP HANA database and its core components.

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What does the resident HDBLCM do?

The resident HDBLCM is embedded in the SAP HANA database and performs administrative tasks.

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SIGNATURE.SMF file

A file that contains the digital signature for SAP HANA software components, verifying their authenticity and integrity.

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Authenticity verification

A mechanism within SAP HANA that automatically checks the digital signature of software components to ensure they haven't been tampered with.

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'--verify_signature'

A command-line parameter used to enable authenticity verification when using the non-resident HDBLCM.

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SAP HANA Database Lifecycle Management (HDBLCM) tool

A tool used for managing the lifecycle of SAP HANA, including updating components and verifying software authenticity.

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Resident HDBLCM

A type of HDBLCM that resides within the SAP HANA database and manages it directly.

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Non-resident HDBLCM

A type of HDBLCM that operates outside the SAP HANA database, usually for initial installations or updates of specific components.

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Updating SAP HANA components

A process used to introduce new features or fixes into the existing SAP HANA database system.

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Man-in-the-middle attack

A type of security attack where an attacker intercepts communication between two parties, potentially altering data without their knowledge.

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SAP Note 2178665

A digital document that provides information about software components within a specific directory.

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SAP Note 2577617

A document that provides information about verifying software authenticity and integrity during SAP HANA installations and updates.

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What is SAP HANA database lifecycle manager (HDBLCM) ?

The SAP HANA database lifecycle manager (HDBLCM) is a tool used to manage the lifecycle of SAP HANA systems. It provides various functionalities such as installation, update, and configuration of SAP HANA components.

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How can you use HDBLCM?

HDBLCM offers three ways to interact with it: hdblcm (command line), hdblcmgui (graphical user interface), and hdblcmweb (web-based interface). Each interface offers different functionalities and ease of use.

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How is the HDBLCM web interface accessible ?

The web-based interface of HDBLCM is hosted by the SAP Host Agent, which is installed on the SAP HANA host. This allows you to manage your SAP HANA system from a web browser.

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Who has access to the HDBLCM web interface ?

For security reasons, the web-based HDBLCM is always started with system administrator user 'adm' privileges. This ensures that only authorized users can access the system.

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How can you troubleshoot HDBLCM issues?

If you encounter issues with HDBLCM, you can check the log files for troubleshooting information. The log files are typically located in /var/tmp/hdblcm.log or /var/tmp/hdblcmgui.log.

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What is the role of the resident HDBLCM?

The resident HDBLCM is embedded within the SAP HANA database and manages its administrative tasks. It can also install or update SAP HANA components or the entire database system.

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Why are read/write processes checked before an SAP HANA update?

Before updating SAP HANA components, ensure that no read or write operations are active on the database. This prevents data corruption during the update.

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Why is the SAP HANA system restarted during updates?

The SAP HANA system is restarted during the update, which can cause downtime. It's recommended to perform the update outside of business hours to minimize disruption.

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What methods minimize downtime during SAP HANA updates?

Phased System Update and Near Zero Downtime method aim to reduce downtime during SAP HANA updates.

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How does the standard SAP HANA update work?

The standard SAP HANA update method performs everything in a single step, causing a complete system shutdown.

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What is the Phased System Update?

The Phased System Update method, available in SAP HANA 2.0, splits the update into two steps, allowing the system to remain online during preparation.

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What are the two phases of Phased System Update?

The Phased System Update method allows updating the system in two phases: preparing for the update (prepare_update) and then applying the actual update.

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How long does an SAP HANA update take?

The time needed for an SAP HANA update is determined by the combined time for database shutdown, startup, and an additional 20 minutes for update processes.

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What factors influence database restart time?

The time needed for the database restart depends on the size of the data and the performance of the storage used by SAP HANA.

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How does the Phased System Update minimize downtime?

With the Phased System Update method, the system remains online during the preparation phase, reducing the overall downtime compared to a standard update.

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HDBLCM Phase 2

The second stage of the SAP HANA database lifecycle manager (HDBLCM) update procedure, where the system is brought down and the software switch is performed.

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Phased Update

A type of SAP HANA system update where the update is divided into two phases, minimizing downtime.

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Valid License Key Prerequisite

The requirement to have a valid license key for the SAP HANA system before starting the update.

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Stopping Data Replication

Stopping the data replication process before starting the phased update.

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System Backup Prerequisite

Performing a backup of the SAP HANA system before a phased update.

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Running Database Server Prerequisite

Ensuring the SAP HANA database server is up and running before the update begins.

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Extract Downloaded Revision Components

The process of acquiring and extracting the components from SAP Software Download Center for an SAP HANA update.

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Manual Component Extraction

An alternative to using hdblcm for extracting the update components, involving manual file extraction into designated directories.

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Performing Update from Local Host

Performing the update from a local host connected to the SAP HANA system, minimizing the risk of network glitches.

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Minimize Risk of Failed Update

Minimizing the likelihood of a failed update by performing the update process from a local host connected to the SAP HANA system.

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Study Notes

SAP HANA Database Update

  • Project team requested an SAP HANA 2.0 SPS02 sandbox system to experience the new multitenant database containers. This involves updating an existing SAP HANA 1.0 SPS12 system.

Lifecycle Management Tool (HDBLCM)

  • HDBLCM updates SAP HANA system components: database, client, Application Function Libraries (AFL), SAP LiveCache applications (LCA), extended application services (XS), advanced model (XSA), run-time applications, and SAP HANA smart data access (SDA).
  • Several methods for downloading components:
    • SAP Software Download Center
    • SAP HANA cockpit
    • Maintenance Planner (MP)
  • Perform SAP HANA system updates from a local host to minimize network glitches.

SAP HANA System Update Tools

  • HDBLCM handles all actions within the SAP HANA platform lifecycle management portfolio.
  • Three recommended tools:
    • hdblcm (command line)
    • hdblcmgui (X Window)
    • hdblcmweb (browser) - automatically started by SAP Host Agent.
  • Replaces other tools, like SAP HANA unified installer, on-site config tools, SUM for HANA, hdbinst, hdbupd, and SAP HANA Lifecycle Manager tools.

Upgrading SAP HANA

  • Two HDBLCM versions:
    • Version on installation media: installs/updates SAP HANA database and its core components, but no additional administrative tasks are possible.
    • Resident HDBLCM: embedded in SAP HANA database, handles administrative tasks for the database itself, including installation or updates of supplementary SAP HANA components. Both versions are needed.

HDBLCM Resident

  • Performs administrative tasks within the database environment.
  • Installs/updates additional SAP HANA components, optionally including the complete SAP HANA database system.
  • Verification of the downloaded installation/update kit happens by default.

Update Process

  • Phased Update: System downtime can be minimized using this method. This is done in two steps.
    • Phase 1 (prepare_update): Runs HDBLCM update action with the --prepare_update parameter. Keeps the SAP HANA system in uptime during the phase.
    • Phase 2: Resumes the update procedure, switching software and taking the system down, using the HDBLCM tools hdblcmgui, hdblcm, or hdblcmweb.
  • One-Step Update (Standard) updates in a single step.

Prerequisites for Phased Update

  • Updating to a new Support Package Stack (can be from installation medium, SAP HANA cockpit, or manually downloaded files).
  • System backup completed
  • System data replication stopped.
  • Valid admin and database administrator passwords.
  • Valid SAP HANA database license key.
  • The SAP HANA database server is running.

Update Component Extraction

  • Download individual components from the SAP Software Download Center.
  • Extract downloaded components using HDBLCM tools.
  • Alternative: Manually create local package directories for the update tool to recognize.

Data Integrity and Authenticity

  • SAP HANA 2.0 SPS03 enforces automatic software authenticity verification to prevent security attacks (like man-in-the-middle).
  • Verification is automatically enabled for the resident update tools, but can be explicitly switched on for other tools.

Troubleshooting

  • Check error logs for problems, such as in /var/tmp/hdblcm.log or /var/tmp/hdblcmgui.log.
  • Restart HDBLCM.
  • Update to a later version.

Dealing with Update Failure

  • If update stops before completion, uninstall the SAP HANA system using the HDBLCM and restore from backups, then reinstall and update again.
  • Create an SAP Support ticket for complex support.

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Related Documents

Updating SAP HANA PDF

Description

This quiz covers the processes and tools involved in updating an SAP HANA database system. It includes information about using HDBLCM for lifecycle management and the various methods to download and manage SAP HANA system components. Test your understanding of these critical updates to enhance your SAP HANA skills.

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