Increasingly, organisations and businesses are looking for ways to benefit from cloud computing. This is largely due to the attention cloud solutions are receiving. IT staff are also interested in cloud solutions due to the advantages they offer, including easier management, faster and easier deployment of applications, better collaboration and lower costs.
However, to leverage cloud computing better, decision makers need to understand several things about it. One of them is the different models available. It is crucial to understand the pros and cons of each so as to make an informed decision. The different cloud computing models are private cloud, public cloud and hybrid cloud models.
An organization can decide to create their own cloud by acquiring servers, virtualization software and other hardware and software needed. The organization will also needed to hire or train personnel to manage the cloud. Private clouds offer an organization more control over the cloud. However, this comes at the cost of increased complexity and investment.
There are various reasons for choosing the private cloud model. When properly managed, it offers more security, availability and reliability. Another reason is compliance, where an organization must store and secure clients’ data within their infrastructure e.g. the banking sector.
Public clouds are provided by cloud providers over the internet to an organization. Since the organization’s cloud services are provided with those of other clients, it is cheaper due to economies of scale. However, security, performance and reliability can be an issue. An organization also has lesser control as compared to the private cloud. It is well-suited for systems that are not highly sensitive or time-critical.
Hybrid clouds combine private and public clouds as well as other computing models such as client/server. This allows the company to leverage the model that best suits their needs as well as existing infrastructure.
A rapidly growing sector of the market, cloud computing offers businesses an opportunity to scale-up their services and functionalities without the need of resources being monopolised by the use of a large pool of centralised services. The models discussed above are models for managing cloud computing set ups. In terms of the back-end set ups:
Software as a service (SaaS)
In this case, the cloud service provider typically installs and hosts the desired software in their own data center and thereafter provide at a fee it to multiple tenants and users over the Web.
Infrastructure offered as a service (IaaS)
This is similar to SaaS, however in this case the cloud provider only offers a functional and operational the data center and the users must deploy and manage their own software service. Just, in the same way, that they would do in their own physical machines.
Platform offered as a Service (PaaS)
This is a special this model for developers, it offers a programming environment complete with all the required tools and resources.
With any of the above setups, businesses need to ensure that they are making the right decisions about how to handle their networks before proceeding, and the help of an IT support company can definitely help in this respect.