Before we begin, let us consider the scenarios in which cloud database migration would be a viable option:
• The ability to manage databases in-house is inadequate
• IT is not a central functional unit
• You’re an SME and need to cut initial capex costs
• You are working with new applications or developing one, and want to try the cloud as a testing environment
• Moving to the cloud for your disaster recovery (DR) backup, and using it as a trial run to identify issues and hurdles to database migration
The key advantages to cloud database migration are availability, scalability, reliability, and cost. The cloud infrastructure is scalable, and no capex investment is needed. Business are generally very open to database migration if security concerns are addressed satisfactorily.
Although database migration in isolation (without migrating applications) is not impossible to accomplish, it may not be very feasible. When your application resides in-house and your database runs on an external server, life will not be easy. The two networks need to collaborate seamlessly to provide fast and optimum functioning. The process must work in most instances, otherwise it will not perform any better than it did in-house. That is also why it is recommended to migrate the entire set-up onto the cloud.