What is the Cloud?

Sub Categories

Commercial demands are constantly changing and organization’s must look to new ways meet these demands using less resources. In this highly competitive world, you must evolve and transform to create efficiencies and reduce costs, all whilst minimizing risk. Cloud Computing will allow your organization to be flexible and responsive towards meeting these growing demands.


Cloud is simply a word for using ITC resources (Hardware, Software, Utilities) that are delivered over a network, mostly the Internet. Cloud really means the services are hosted off premise and as long as you have Internet, you can access your services.


On-Demand Self Services – you can use as much or as little access, server time & storage as you want

Measurable Services – Cloud services are monitored so you can easily see how much you are using and what it costs

Elasticity – ITC resources can be rapidly provisioned to either scale up or down as required, means you only use and pay for what you need.

Resources Pooling – Infrastructure provided by the Cloud provider can be pooled for multiple tenants (customers) with either physical or virtual resources according to demand.

Broad Network Access – Multiple networks can be combined to provide access to any user at any end-point.


Main Cloud Services Models

Software as a Service (SaaS):

SaaS is a common delivery model for many business applications, including accounting, collaboration, customer relationship management (CRM), management information systems (MIS), enterprise resource planning (ERP), invoicing, human resource management (HRM), content management (CM) and service desk management.

Platform as a Service (PaaS):

PaaS is a cloud services provides a platform and a solution stack as a service. The consumer creates the software and controls deployment and configuration settings. The provider provides the networks, servers, storage and management services. PaaS offerings also include application design, application development, testing and deployment.

Infrastructure as a Service (IaaS):

Cloud providers offer computers as physical or virtual machines (VMs) alongside other key resources such as security infrastructure and load balancers. IaaS provides these resources on demand from their large pools installed in data centres. For wide area connectivity, the Internet is used; or dedicated VPNs can be configured. IaaS services are billed on a utility computing basis, the cost reflects the amount of resources allocated and consumed.


Cloud Terminology

There are various cloud offerings:

Private Cloud  

Private Cloud is commonly known as Infrastructure as a Service (IaaS) A fully-outsourced and customised computing infrastructure for your business. Rather than buying servers, software licenses, network equipment and data centre space, you can buy all of them bundled as a managed service. Netlink Group uses the industry’s most recognised vendors, HP, VMware, Cisco, EMC, Microsoft, NetApp to provide a tailored IaaS solution for your business needs.

Hybrid Cloud

Hybrid clouds are a composition of public, community or private clouds that remain unique entities but are networked together. Deployments of this type usually require both on-site resources and off-site (remote) server-based infrastructure. Hybrid clouds provide the flexibility of in-house applications with the fault tolerance and scalability of cloud based services.


Public Cloud

Public cloud applications, storage, and other resources are made available to the general public by a cloud service provider. The services are normally offered on a pay-per-user model and public cloud service providers own and operate the infrastructure. Access is achieved via the Internet.