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FusionCloud 6.3.0 Solution Description 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Working Principles

Working Principles


Figure 29-1 Logical architecture of HSS
Table 29-1 Component details

Component Type

Component Name


Console layer

HSS Console

Enables you to manage all HSS-related resources.

API/Service layer

HSS Service

Provides interfaces for the HSS Console to manage HSS resources.

Common components

API Gateway

Third-party applications call ECS APIs through API Gateway.


Provides the resource metering and billing function.


Provides domain name resolution and time synchronization.


Displays the task status.

Resource pools


Manages the lifecycle of computing instances in the FusionSphere OpenStack system, for example, creating instances in batches, and scheduling or stopping instances on demand.


Provides persistent block storage for running instances. Its pluggable drives facilitate block storage creation and management.


Provides APIs for network connectivity and addressing.

Management domain


Provides Identity and Access Management (IAM).


Provides performance monitoring and alarm generation.

Service OM

Manages FusionSphere OpenStack and resource configuration.


Provides the resource metering and billing function using SDR.


Figure 29-2 Workflow of HSS

The workflow contains the following tasks:

  1. On HSS Console, apply for Trend HSS.
  2. After receiving the subscription request, HSS Service creates and traces the order generation and approval processes. HSS Console sends a rest API request to HSS Service to query the status list of all hosts of the tenant.
  3. HSS Service sends a message to Nova to query the VM details list of the tenant and query the agent installation and running status of the VM.
Updated: 2019-04-23

Document ID: EDOC1100026685

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