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FusionCloud Solution Description 04

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Implementation Principle

Implementation Principle


Figure 35-4 shows the architecture of the Oracle database service.

Figure 35-4 Oracle database service architecture
Table 35-2 Component details




Console layer


Provides level-1 load balancing.


Provides level-2 load balancing.


Is the user self-service management console of Oracle on the web client.

Service/API layer


Provides load balancing.

Oracle Service

Combined APO provides the backend service for ECS, serves as the server side of the ECS UI. Requests sent by an ECS from the console are forwarded by ECS UI to Combined API and are returned to ECS UI after being processed by Combined API.

Common component


Provides the resource metering and billing function.


Provides domain name resolution and time synchronization.

Resource pool

Oracle RAC

Is the Oracle RAC cluster.

Management domain


Provides identity and access management (IAM).

Service OM



Provides the resource metering function using SDR.


Figure 35-5 shows the service flow of the Oracle database service.

Figure 35-5 Oracle database service workflow

The tasks in all steps are as follows:

  1. Log in to the Oracle database service web client.
  2. Access the Oracle RAC cluster and create and deploy the CDB and PDB.
  3. Back up CDB, restore PDB, store data, and perform basic operations.

Service Operation

The Oracle database service simplifies database provisioning, usage, and O&M of IT administrators and tenants, improving database provisioning efficiency. Resource administrators and tenants can perform the following operations:

  • Resource pool administrator

    The resource administrator is responsible for the overall maintenance and management of the Oracle environment, including resource pool planning, database deployment, upgrade, backup and disaster recovery, and routine database maintenance.

    With the Oracle database service system, the resource pool administrator can perform the following operations:

    1. Create an Oracle resource pool and add the Oracle cluster to the resource pool as planned.
    2. Create a CDB database in the Oracle cluster to carry the PDB database applied by tenants in the future.
    3. Manages and views the Oracle cluster and CDBs, including the cluster status, CDB configuration parameters, alarm logs, and performance counters.
  • Tenant/User

    After the administrator completes resource pool and CDB database preparation, tenants can apply for and provision PDB instances and perform self-service management on the PDB database, including:

    1. Self-service application for PDB instances.
    2. Starts and stop PDB instances.
    3. Configuration parameters viewing of the nodes in a PDB instance.
    4. Restore the data of PDB instances.
    5. Manages tablespaces and user rights.
    6. Check the node monitoring of PDB instances.
    7. View sessions.
Updated: 2019-10-23

Document ID: EDOC1100063247

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