1z0-902 Reviews Questions

For adding a new RAC (Real Application Clusters) VM cluster to an existing Oracle Exadata X9M-2 deployment, you can utilize the Oracle Exadata Deployment Assistant (OEDA). OEDA is available in two interfaces:

OEDA Web-based Configuration Tool: This web-based interface facilitates the configuration of Exadata environments, supporting both physical and virtual deployments. The graphical interface helps in defining VM clusters, including RAC clusters, and ensures the configuration aligns with Oracle best practices​.

OEDA Command Line Interface (CLI): For more advanced or automated tasks, the command-line interface (oedacli) allows for precise control over the deployment process. It supports various configuration actions such as adding or removing clusters, resizing ASM disk groups, and managing VM clusters​.

These tools are specifically designed for Exadata configurations and provide a streamlined approach for deploying and managing RAC clusters in both physical and virtualized environments.

According to Oracle.com documents or resources, the four actions that you should take before proceeding with applying updates to your Exadata Database Machine are:

A. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release123.

B. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk453.

C. Run exachk and resolve only WARNINGS that you have not seen before3.

D. Run the appropriate patchmgr preqequisite check step for each component being updated3.

According to the Oracle Auto Service Request (ASR) documentation1, ASR raises service requests for qualified Oracle products that are detected with specific faults. The qualified Exadata products include2:

Database servers

Storage servers

InfiniBand switches

Cisco switches (X8M and later systems)

Power distribution units (PDUs)

In order for an Exadata X9M-2 Elastic Rack to be installed, two power feeds are required for each of the three-phase 24kVA PDUs. A single cable from each PDU will not be enough to power the rack, and neither a splitter cable nor rearrangement of the power cables from the servers to the PDUs will be able to provide sufficient power for the system. Therefore, the installation cannot proceed until two power feeds are available per PDU.

For more information about power requirements for Exadata X9M-2 Elastic Racks, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources.

Search results: [1] Oracle Exadata Database Machine X9M-2 Full Rack Installation - Oracle Docs [2] Exadata Database Machine X8M-2 Mid-Size Rack Installation - Oracle Docs

https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmin/exadata-site-requirements.html