Represented by traditional industries, there are many kinds of existing application systems: office system, financial system, customer management system, R & D management system, production management system, etc. the business flow between systems is relatively complex and cumbersome. In the process of cloud migration, it is necessary to ensure the continuity of application migration, linkage of cloud and offline systems, high availability of data, etc. Because each customer's business system is not the same, it is necessary to customize the cloud migration scheme and implementation according to their own characteristics.
● Data consistency
The "Zero" loss of business data is the basic premise of migration implementation. The key challenge is to effectively identify and continuously synchronize the incremental data generated in the process of migration and ensure the data consistency between the source side and the target side.
● High safety requirements
During the migration process, data encryption, migration fallback protection mechanism, security and compliance after migration to the cloud are difficult for enterprises to evaluate and guarantee independently.
● Long business interruption time
Continuous service provision is very important to users. Without comprehensive migration plan and customized migration path, migration may cause business interruption to existing business and impact on end users.
Database cloud migration steps:
1. System evaluation: including system basic environment, business process and correlation, system deployment structure, system architecture, etc.
2. Cloud planning: according to the results of the system evaluation, sort out the cloud plan and planning, and formulate the cutover scheme and rollback scheme.
3. Migration test: verify the feasibility of cutover and rollback.
4. Migration implementation: migrate all applications and data on the system according to the verified cutover scheme.
5. Business verification: verify the system functions on the cloud, remove the fault, and complete the cloud migration.
