What are the steps involved in preparing the Fusioninsight HD S before installation? (Multiple choices)

Preparing for a FusionInsight HD installation is a comprehensive process involving multiple stages that must be completed before running the installation software. This includes the physical setup of servers and networking (hardware installation), the foundational software layer on each node (operating system installation), the creation of a detailed deployment blueprint (planning data for network and roles), and gathering all necessary installation media and management utilities (tools and software packages). Each of these steps is a critical prerequisite for a successful and stable big data platform deployment.

All the provided options are correct and represent essential, distinct phases in the preparation for a FusionInsight HD installation. There are no incorrect options among the choices.

1. Huawei FusionInsight HD 6.5.1 Software Installation Guide, Document Issue 08. This official guide outlines the end-to-end installation process.

For option A & B: Chapter 4, "Preparing for the Installation," details the requirements for preparing the hardware environment (Section 4.2) and installing the operating system on each node (Section 4.4). This confirms that hardware and OS installation are mandatory prerequisites.

For option C: Chapter 4, "Preparing for the Installation," Section 4.1, "Obtaining Software and Documents," explicitly lists the requirement to download the FusionInsight HD software package, related tools, and documentation before starting.

For option D: Chapter 3, "Installation Planning," is dedicated entirely to the planning phase. It describes the process of creating the Low-Level Design (LLD) document, which must include network planning (Section 3.2), server planning (Section 3.3), and component deployment planning (Section 3.4). This corresponds directly to planning network parameters and role deployment.