Cloud Migration

What is cloud migration?

Cloud migration is the process of moving digital business operations into the cloud. Cloud migration is sort of like a physical move, except it involves moving data, applications, and IT processes from some data centers to other data centers, instead of packing up and moving physical goods. Cloud migration requires quite a lot of preparation and advance work, but usually it ends up being worth the effort, resulting in cost savings and greater flexibility.

Most often, “cloud migration” describes the move from on-premises or legacy infrastructure to the cloud. However, the term can also apply to a migration from one cloud to another cloud.

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What cloud deployment style should companies choose?

  • Hybrid cloud

    A hybrid cloud mixes two or more types of environments, combining public clouds, private clouds, or on-premises legacy data centers. For a hybrid cloud deployment to work well, integration must be tight across all deployed clouds and data centers – just as team members need especially tight communication if they’re spread out across different offices.

  • Multi cloud

    A multicloud deployment combines two or more public clouds. (Public clouds are shared by more than one customer.) Multicloud can serve several purposes: redundancy/backup, cost savings, or leveraging features from different cloud providers, for instance.

  • Single cloud

    Deploying a single cloud from just one cloud vendor is not always feasible for a business, but it is an option. Cloud providers offer both public clouds and private clouds – the difference being that private clouds are not shared with any other business.

The main benefits of migrating to the cloud

  • Scalability

    Cloud computing can scale up to support larger workloads and greater numbers of users far more easily than on-premises infrastructure, which requires companies to purchase and set up additional physical servers, networking equipment, or software licenses.

  • Cost

    Companies that move to the cloud often vastly reduce the amount they spend on IT operations, since the cloud providers handle maintenance and upgrades. Instead of keeping things up and running, companies can focus more resources on their biggest business needs – developing new products or improving existing ones.

  • Performance

    For some businesses, moving to the cloud can enable them to improve performance and the overall user experience for their customers. If their application or website is hosted in cloud data centers instead of in various on-premises servers, then data will not have to travel as far to reach the users, reducing latency.

  • Flexibility

    Users, whether they’re employees or customers, can access the cloud services and data they need from anywhere. This makes it easier for a business to expand into new territories, offer their services to international audiences, and let their employees work flexibly.

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Cloud migrations will include these basic steps:

1. Establish goals

What performance gains does a business hope to see? On what date will legacy infrastructure be deprecated? Establishing goals to measure against helps a business determine if the migration was successful or not.

2. Create a security strategy

Cloud cybersecurity requires a different approach compared to on-premises security. In the cloud, corporate assets are no longer behind a firewall, and the network perimeter essentially does not exist. Deploying a cloud firewall or a web application firewall may be necessary.

3. Copy over data

Select a cloud provider, and replicate existing databases. This should be done continually throughout the migration process so that the cloud database remains up-to-date.

4. Move business intelligence

This could involve refactoring or rewriting code (see below). It can be done piecemeal or all at once.

5. Switch production

The cloud goes live. The migration is complete.

6. Turn off on-premises

Some businesses turn off their on-premises infrastructure at the end of these steps, while others may keep legacy systems in place as backup or as part of a hybrid cloud deployment.

Linkosys experts, we are always responsive to your diverse needs and you feel like we are part of your company, not just an outside provider of IT solutions and services.
Tri Nghiem, Chairman and Founder of LINKOSYS