SAP HANA Database Update Methods
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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</p> Signup and view all the answers

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

    <p>hdblcm</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</p> Signup and view all the answers

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

    <p>The SAP HANA Cockpit</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.</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.</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.</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.</p> Signup and view all the answers

    Which user privileges are required to start hdblcmweb?

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

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

    <p>--verify_signature</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.</p> Signup and view all the answers

    Which type of attacks can the authenticity verification help prevent?

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

    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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