Basic Concepts

Updated on 2023-12-28 GMT+08:00

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Account
An account is created upon successful registration with Huawei Cloud. The account has full access permissions for all of its cloud services and resources. It can be used to reset user passwords and assign user permissions. The account is a payment entity and should not be used directly to perform routine management. For security purposes, create IAM users and assign them permissions for routine management.
IAM user
An Identity and Access Management (IAM) user is created using an account and can use cloud services. Each IAM user has its own identity credentials (password and access keys).

An IAM user can view the account ID and user ID on the My Credentials page of the console. The domain name, username, and password will be required for API authentication.
Region
Regions are divided based on geographical location and network latency. Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region.

Regions are classified into universal regions and dedicated regions.
- A universal region provides universal cloud services for common tenants.
- A dedicated region provides specific services for specific tenants.
For details, see Region and AZ.
Availability Zone (AZ)
An AZ contains one or more physical data centers. Each AZ has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters. AZs within a region are interconnected using high-speed optical fibers to support cross-AZ high-availability systems.
Project
Projects group and isolate resources (including compute, storage, and network resources) across physical regions. A default project is provided for each Huawei Cloud region, and subprojects can be created under each default project. Users can be granted permissions to access all resources in a specific project.

For more refined access control, create subprojects under a project and purchase resources in the subprojects. Users can then be granted permissions to access only specific resources in the subprojects.
Enterprise Project
An enterprise project groups and manages enterprise resources in a logically isolated manner. It contains resources in multiple regions, and allows resources to be added or removed.

For details about how to obtain enterprise project IDs and features, see Applicable Scenarios.

Parent topic: Before You Start

Previous topic: Notes and Constraints

Next topic: API Overview

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