Cloud Migration
Cloud migration is the process of moving data, applications, or other business elements to a cloud computing environment. There are several types of cloud migrations that a company can undertake. A common model is the transfer of data and applications from an on-premises data center to the public cloud.
Main advantages of migrating to the cloud:
Businesses migrate to the cloud for a variety of reasons, below are just a few of the reasons why migrating could be a great decision for your organization.
By maintaining your own on-premises data warehouse, you are responsible for maintaining the infrastructure and workforce to support all aspects of your warehouse. But when you move to the cloud, you can benefit from world-class infrastructure while saving money.
Much of the complexity of a data warehouse can be handled by a team of product specialists at a cloud data warehouse provider. This means your employees can focus on the things that really matter, like growing your business.
One of the biggest advantages of the cloud is scalability. Whether you're expanding quickly or not, a cloud data warehouse can accommodate you.
Cloud data warehouses are responsible for providing services that meet common compliance requirements, including certifications such as SOC 2, ISO27001, HIPAA and PCI. When you move to the cloud, a team of security experts is part of the deal.
Cloud migration challenges
The larger and more complex your company's current infrastructure, the more difficult it will be to migrate to the cloud. Like any major change, there are challenges involved in migrating to the cloud.
Redesigning your data model
You will almost certainly need to change your data model. Different cloud data warehouses support different types of schema. Also, data types can be different. For example, Snowflake introduces VARIANT, OBJECT, and ARRAY to support semi-structured data.
planning for security
You're probably worried about how you'll keep data safe when moving it to the cloud, where you have less control. Security is a concern during and after migration. Furthermore, sensitive data is often subject to compliance requirements, which can be difficult to support during the migration process.
Moving Stored Procedures
If you use stored procedures, you might be surprised to find that this solution is generally not compatible with cloud environments. Migrating these stored procedures to a cloud data warehouse can be challenging.
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