Public cloud hosting is the most recognisable model of cloud computing under which cloud services such as applications and storages are provided in a virtualised environment over a public network like Internet. This virtualised environment is created by a large number of interconnected servers residing in data centres of service providers.
Public cloud services may be free or the service provider may charge you according to the resources you have consumed. Public cloud computing offers a series of important advantages and benefits like investment cost, better scalability and utility style costing. Organizations can save big on their investment in developing their IT infrastructure as computational resources like memory, storage, bandwidth , CPU, RAM, etc are is covered by the service provider.
Higher levels of scalability offered by cloud computing is another of its major advantages. You can always scale up or scale down your resources in response to changes in network traffic and resource requirement. Cloud hosting also prevents wastage of resources as you demand and pay only for resources that you have consumed.
The term “public cloud” arose to differentiate between the standard model and the private cloud, which ring-fence the pool of underlying computing resources, thereby creating an underlying pool of resources to which only a single organization has access. Private cloud as such is a single tenant hosting environment where as public cloud computing is a multi-tenant hosting environment under which services are provided to multiple users using the same infrastructure.
Public clouds are most likely to be preferred by organizations that need large amount of reliable data processing capabilities offered by public cloud hosting without the need for elaborate infrastructure and security that is the hallmark of private computing. In other words even organizations that can invest in building their own clouds can take help of public cloud hosting to enhance their data processing efficiency of non-sensitive business data.
In the following paragraphs we shall look at some of the major advantages and benefits offered by public cloud computing.
Public cloud computing services offers organizations the opportunity to realize many of the advantages offered by private clouds, but without many of the costs.
Public cloud hosting offers cost advantages in two ways. First and foremost organizations are spared the trouble of investing in buying, installing, operating or maintaining servers or other equipment for smooth business operations. Service providers have the responsibility of providing both hardware and software applications along with the requisite computational resources to their clients.
Public cloud hosting as mentioned above is designed for a multi-tenant environment. This allows a huge number of users to share a provider’s computing resources, thereby making public cloud services highly cost-efficient for users. Experts agree that the cost of a public cloud is typically far lower than a traditional data center and private cloud because there is no capital expense. There is also greater flexibility for users because organizations pay only for the computing resources that they actually use.
Public cloud makes use of large numbers of servers and networks. This is the primary reason public clouds score high on factors of reliability and trust. There is no single point of failure or vulnerability associated with public cloud hosting as extra servers are always at hand to compensate for the absent server.
Economical cloud hosting firms in UK facilitates availability of cloud resources from public clouds vast pool of resources. This results in better utilization rates, security, and flexibility and location independence among others.
Utility model – Public Clouds typically deliver a pay-as-you-go model, where you pay by the hour for the computational resources you use. It is similar to using electricity and water where you pay only for the units you have consumed. Public clouds as such are economical and ensure no wasted resources or efforts trying to add to your existing infrastructure to meet seasonal spikes in traffic.
You can always ask your service provider for extra resources to handle additional load on your website. Quality service providers usually charge a minimal amount for the additional resources like bandwidth, memory, RAM, etc that they provide.