What is a public cloud?
Let’s understand the concept of a public cloud.
A public cloud, also called an open cloud, is the most typical cloud computing service.
A public cloud is a form of cloud computing that is accessible through the Internet. Public cloud services are usually hosted by a cloud service provider's data center and shared by multiple users. That is, a public cloud is a cloud environment accessible to anyone, without restrictions. Public cloud solutions offer high scalability, allowing users to scale resources up or down to meet their demands. Additionally, it frees companies or individuals from building their own infrastructure as the service provider offers infrastructure, platforms, or software services.
Digital transformation, episode 10: The cloud, the core technology of DT (2) Insight report describes how cloud services work, using the analogy of a house.
"If you want someone to select and manage a great employee who would never cross a line in a cloud environment while perfectly keeping your privacy, private clouds will be the best option for you. On the other hand, if you are willing to give up on privacy and noise between floors for lower maintenance fees and a pleasant life, public clouds will be the best fit for you. If you need both, you should adopt a hybrid model that is a combination of the two."
[Gartner's definition] Public cloud computing is a style of computing where scalable and elastic IT-enabled capabilities are provided as a service to external customers using Internet technologies. That is, public cloud computing uses cloud computing technologies to support customers that are external to the provider’s organization. Using public cloud services generates the types of economies of scale and sharing of resources that can reduce costs and increase choices of technologies.
What are the advantages of the public cloud?
Cost efficiency
Using the public cloud can save you money by providing flexibility and the ability to use as many resources as you need. Also, services are available without any upfront investment costs, and the maintenance costs are passed on to the cloud service providers.
High availability and scalability
Building data centers in many regions and configuring multiple servers increase service availability. Most public cloud providers use a multitenancy architecture that lets multiple users access services simultaneously. In addition, flexible scalability of infrastructure allows users to scale infrastructure resources up or down on demand.
Professional management services
There is less of a burden on users in terms of resource updates and maintenance, as public cloud providers take care of these things.
High accessibility
A public cloud is a cloud service that is accessible through the Internet. It means users can use it anytime, anywhere in the world, as long as they are connected to the Internet.
What should we consider when introducing a public cloud?
Data security
Using public cloud solutions can result in security issues because servers in public clouds share and store data through the Internet.
Restrictions on the system and network
Public clouds are controlled by providers, restricting users' system access and network configurations. In addition, public cloud solutions require an Internet connection. Users cannot use the service if the Internet is disconnected. Moreover, data processing may be slow and network bottlenecks can occur.
Increase in costs
The upfront costs may be cheap, but continuous use of public cloud services can lead to an increase in costs.
As Samsung SDS has acquired a security certification for cloud services, it safely manages crucial data and delivers services optimized for government agencies and public services.
