Architectural design
According to the customer's current cloud migration requirements, Oracle cloud hosts are used to load business traffic, deployed in different fault domains in the OCI region to ensure the high availability of the business from the deployment architecture, and protection services such as security groups and firewalls on the cloud are used in cloud security, and machines involving core business are deployed on OCI's private networkEnsure the security of resources on the cloud
The WEB and APP infrastructure is based on storage high availability and backup/recovery mechanisms, with zero system data loss and 0 to 10 minutes for system infrastructure failover: server and storage availability switching takes minutes (generally 5 minutes to 10 minutes);

Schema description
1. Services are deployed in different fault domains to ensure the availability of services
2. The public subnet is used to deploy services accessed by users such as load balancing, and the private subnet deploys internal services
3. OCI compute resources are used as supplemental resources to the customer's IDC to take over the burst traffic and compute needs of each region.
4. Docking with the existing management platform through API means to enable the management platform to call OCI to create or shut down compute instance nodes.

The value of going to the cloud
1. After using public cloud services, computing power, storage, and network can be quickly obtained according to actual business needs, and there is no need to invest a large amount of fixed assets
2. Realize the business replenishment resources of OCI computing resources customers to cope with the burst traffic and computing needs of each region