The advantages of migrating to the cloud—lowered costs, enhanced security, scalability—are widely known, but the truth is that not all cloud solutions are created equally. In today’s ever-evolving market you may find that your initial cloud solution is no longer a good fit for your business needs.
What is cloud-to-cloud migration?
Cloud-to-Cloud migration is the movement of physical or virtual machines from one cloud service to another. This allows companies to effortlessly switch providers without first transferring data to in-house servers.
Reasons for cloud-to-cloud migration:
Additional tools and functionality
Faster deployment times
Flexibility & scalability
Increased uptime and improved SLAs with new cloud
Types of cloud models:
Cloud computing is usually described based on the deployment model or the service model.
Based on the service model, we can classify cloud as:
1. Infrastructure as a service (IaaS)- An IaaS acts as a third party provider, hosting hardware, software, servers, storage and other infrastructure components on behalf of its users. It provides the highest level of flexibility and control over your IT resources. This model makes the workload easier by providing data center space and consolidating storage systems, network devices, and servers.
2.Platform as a service (PaaS)- PaaS is a platform that provides a full (and invisible) infrastructure environment. The model is a level above the software-as-a-service and includes hardware, network and operating system so that customers can design their application and software.
3. Software as a service (SaaS) – SaaS is a delivery model through which centrally hosted software is licensed on a subscription basis which means that users can access various software applications on a pay-per-use basis.
Cloud services are primarily categorized on the basis of access, size and proprietorship, and cloud deployment models represent the exact category of a cloud environment. Let’s delve deeper to understand various cloud deployment models:
1. Public Cloud- A public cloud is an open-use cloud deployment model that allows users easy access to systems and services. It can be owned, managed and operated by a business, academic institution, government organization, or a combination thereof.
2. Private cloud- A private cloud only allows access to authorized users from a single organization. This provides greater control over data and security.
3. Hybrid cloud- Hybrid infrastructure is a composition of both public and private clouds which remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability.
4. Community cloud- The community cloud is a multi-tenant platform that is shared by different organizations with similar business needs. It can be managed internally or by a third-party provider.
Migrating to the cloud is not a one and done project. A dynamic organization has ever-changing needs, and switching to a new cloud provider is one way to evolve your business practices, increase your efficiency, and improve your bottom line.
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