You can choose from three main cloud deployment types:
- Public cloud. Third parties run and own public clouds, which provide computing resources, like servers and storage, over the internet. Public cloud providers own and manage all hardware, software, and other infrastructure. With the public cloud, you can access and manage cloud services via the web. The public cloud is best for running web servers and endpoints.
- Private cloud. Private clouds are cloud computing resources used by only one company. On-site data centers can host private clouds, though some companies use third-party providers. With a private cloud, you receive the benefits of a public cloud, including self-service, scalability, and elasticity. You also gain control and customization over the cloud. The private cloud is suitable for storing confidential data. Your data will stay safe and private on the private networks.
- Hybrid cloud. In a hybrid cloud environment, data and apps are shared between public and private clouds. You can easily move data and apps between private and public clouds, allowing you increased flexibility. You will also find better security, compliance, and infrastructure with the hybrid cloud.
A fourth deployment model has begun to gain traction among organizations:
- Multi-cloud. This model leverages cloud computing services (storage, computing, and applications) from multiple cloud providers. A multi-cloud model relies on more than one public cloud provider, but it can also use a hybrid cloud. For example, a company can store sensitive data on its servers and use one public cloud provider for infrastructure-as-a-service (IaaS) and a second provider for software-as-a-service (SaaS).
So, how should you decide which cloud deployment model is right for your organization?
To determine the cloud computing deployment model that best suits your needs, you must evaluate your list of unique requirements. You shouldn’t have to compromise and pick one model, though. Many companies combine different models to access the varying benefits.
For example, public clouds might be cheaper, as they have no capital expenses. Private clouds, though, involve capital expenditures, but they are still cheaper than owning and maintaining on-premises infrastructure.