Top 3 cloud deployment models: public, private and hybrid cloud
Let’s explain the difference among the 3 main deployment models of cloud computing: public cloud, private cloud and hybrid cloud.
The cloud can be effectively deployed in many ways by businesses of any size and industry. There are 3 main cloud deployment models that organisations can leverage based on their needs, namely public, private and hybrid cloud.
1. Public Cloud
Public cloud is the most adopted model among enterprises. According to RightScale’s report, the deployment of public cloud increased to 92% in 2018. Under this model, cloud resources are owned, maintained and managed by a third-party provider and can be securely accessed by and shared with many users at once, meaning it operates in a multi-tenant environment. The leading public cloud providers are Amazon Web Services (AWS), Microsoft Azure, and the Google Cloud Platform. For instance, Tanaza is hosted on Amazon Web Services, which guarantees the highest levels of reliability available on the market, and runs on a reliable, secure, highly-available (99,99%) and redundant cloud infrastructure.
The main benefits of public cloud are:
- Cost-effectiveness: you don’t pay for the hardware/software but only for the resources you use. Also, you save time as you don’t need to worry about maintenance;
- Reliability: public cloud allows you to host data and services on more than one cloud provider. This way, services can be replicated to avoid failures and outages;
- Flexibility: people can access the public cloud services remotely from anywhere, no matter where the offices of a company are located, and from any internet-enabled device.
2. Private Cloud
Private cloud is a type of cloud computing that delivers services to a single organisation through a specific, dedicated architecture. Under this model, the company itself is responsible for and bears the costs of the acquisition, deployment and maintenance of the cloud resources. According to RightScale’s report, the deployment of private cloud increased to 75% in 2018. The most popular vendors providing private cloud solutions are Hewlett Packard Enterprise (HPE), VMware and Dell EMC. Private clouds are generally used among organisations that handle sensitive data and need to critically keep under control their operations, such as government and financial institutions (hospitals, ministries, banks…), big telecommunication carriers, etc.
The main benefits of private cloud are:
- Total control and customisation of the cloud environment based on the business specific needs;
- Higher scalability compared to public cloud – at a higher price;
- Improved security over its data, applications and resources, as private cloud operates on a physically isolated and dedicated architecture.
3. Hybrid Cloud
The third model is hybrid cloud, which is a combination of both public and private cloud and allows companies to be more flexible and use more services. In general, a hybrid cloud occurs when a business operating on a private cloud expands and starts using a public cloud, generating in this way a combined environment. Enterprises adopting this model can benefit from the high control and security levels for their operations offered by private clouds and, at the same time, use the additional resources offered by public clouds when they need. Nevertheless, using a combination of both public and private models requires strong IT management and, accordingly, higher investments.
Based on the nature, the size and the scope of your organisation, you can choose the cloud deployment model that better fits your business needs and take advantage of cloud technology.
Are you a carrier or a public institution operating on a private cloud, or you are forced only to use private cloud in your country, and you are interested in using Tanaza? We can help you installing Tanaza on your private cloud! For more information contact us at firstname.lastname@example.org.