What is Public Cloud vs. Private Cloud vs. Hybrid Cloud Storage
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Below we will show some features of these clouds:
A public cloud is one based on the standard cloud computing model, in which a service provider makes resources, such as virtual machines (VMs), applications or storage, available to the general public over the internet. Public cloud services may be free or offered on a pay-per-usage model.
The main benefits of using a public cloud service are:
- it reduces the need for organizations to invest in and maintain their own on-premises IT resources;
- it enables scalability to meet workload and user demands; and
- there are fewer wasted resources because customers only pay for the resources they us
Public cloud is a fully virtualized environment. In addition, providers have a multi-tenant architecture that enables users — or tenants — to share computing resources. Each tenant’s data in the public cloud, however, remains isolated from other tenants. Public cloud also relies on high-bandwidth network connectivity to rapidly transmit data.
Public cloud storage is typically redundant, using multiple data centers and careful replication of file versions. This characteristic has given it a reputation for resiliency.
Private cloud is a type of cloud computing that delivers similar advantages to the public cloud, including scalability and self-service, but through a proprietary architecture. Unlike public clouds, which deliver services to multiple organizations, a private cloud is dedicated to a single organization.
A private cloud provides the same basic benefits of public cloud. These include self-service and scalability; multi-tenancy; the ability to provision machines; changing computing resources on-demand; and creating multiple machines for complex computing jobs, such as big data. Chargeback tools track computing usage, and business units pay only for the resources they use.
In addition, the private cloud offers hosted services to a limited number of people behind a firewall, so it minimizes the security concerns some organizations have around the cloud. The private cloud also gives companies direct control over their data.
But private clouds have some disadvantages. For example, on-premises IT — rather than a third-party cloud provider — is responsible for managing the private cloud. As a result, private cloud deployments carry the same staffing, management, maintenance and capital expenses as traditional data center ownership. Additional private cloud expenses include virtualization, cloud software, and cloud management tools.
Hybrid cloud is a cloud computing environment which uses a mix of on-premises, private cloud and third-party, public cloud services with orchestration between the two platforms. By allowing workloads to move between private and public clouds as computing needs and costs change, hybrid cloud gives businesses greater flexibility and more data deployment options.
Public cloud’s flexibility and scalability eliminate the need for a company to make massive capital expenditures to accommodate short-term spikes in demand. The public cloud provider supplies compute resources, and the company only pays for the resources it consumes.
Despite its benefits, hybrid cloud can present technical, business and management challenges. Private cloud workloads must access and interact with public cloud providers, so hybrid cloud requires API compatibility and solid network connectivity.
For the public cloud piece of hybrid cloud, there are potential connectivity issues, SLA breaches, and other possible public cloud service disruptions. To mitigate these risks, organizations can architect hybrid workloads that interoperate with multiple public cloud providers. However, this can complicate workload design and testing. In some cases, workloads slated for hybrid cloud redesigned to address the specific providers’ APIs.
It’s your choice to think who is the best. I hope that this article will help to observe the change.
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