With cloud computing, software and hardware resources are accessed via the Internet, instead of being housed on individual computers and local servers. Rather than making upfront purchases, these resources are delivered as services by an external provider for a regular (usually monthly) per-usage fee. A wide range of such computing resources as networks, servers, storage and applications are available through cloud technology.
Advantages of Cloud Computing
- Services on-demand. Users can immediately access computing capabilities where and when they need to, without any need for human interaction with a service provider.
- Broad network access. Services are delivered from one central location to multiple users. Resources are available to all standard devices on a network, such as mobile phones, tablets, laptops, and workstations.
- Pooled resources. The service provider's computing resources are pooled to serve multiple consumers, called a multi-tenant model. This means that physical and virtual resources are assigned and reassigned according to actual consumer demand, so that users can access storage, processing, memory and network bandwidth independent of their location.
- Rapid scalability. Computing resources can be immediately scaled up or down, according to changing business demand. The consumer pays only for what they use, avoiding the cost of excess, unused capacity.
- Measured service. Cloud systems automatically control and optimise resource usage, with metering capability that is appropriate to the type of service, such as storage, processing, bandwidth, and active user accounts. Resource usage can be monitored, controlled, and reported, providing transparency for both the provider and consumer.
Types of Cloud Service
- Software as a Service (SaaS). SaaS is software delivered by a cloud service provider. Microsoft Office 365 is a widely used example of SaaS. Users access their applications through a web browser or program interface, via the Internet. This eliminates the need to physically purchase and download software to individual devices. The SaaS provider manages all updates and patches, so that users always have access to the latest software versions.
- Platform as a Service (PaaS). PaaS is the provision of software and hardware layers (platforms) as services by an external provider. The PaaS provider manages and maintains the platforms, which users access via the Internet. PaaS gives organisations the control and flexibility to develop, test and deploy applications without the need to purchase and manage the underlying infrastructure layers.
- Infrastructure as a Service (IaaS). IaaS is the delivery of infrastructure – typically hardware, storage, server space and other network components - as services via the cloud. The IaaS provider manages and maintains the servers from which cloud services are provided, enabling highly available and robust ICT infrastructure that can be readily scaled up or down to meet a business's changing needs.
Cloud Delivery Models
- Private cloud. Cloud infrastructure for exclusive use by a single organisation across multiple business units. A private cloud may be owned, managed, and operated by the organisation and a third party, or a combination of these. It may be hosted on, or off, the company premises.
- Community cloud. Cloud infrastructure for exclusive use by a specific community of consumers from organisations with shared concerns, such as security, policy, and compliance. A community cloud may be owned, managed, and operated by one or more of the organisations in the community, a third party, or a combination of these, and it may be hosted on or off premises.
- Public cloud. Cloud infrastructure for open use by the general public. A public cloud may be owned, managed, and operated by a business, academic, or government organisation, or a combination of these. It is hosted on the premises of the cloud provider.
- Hybrid cloud. Cloud infrastructure that combines different types of cloud - private, community, or public. A hybrid cloud model can help businesses to blend existing infrastructure with hosted cloud services to address budgetary and security challenges.
Novo IT partners with a range of leading specialist providers to deliver cloud solutions tailored to your specific business needs. Our cloud partners include: Amazon Web Services, Cisco (Silver Partner), Google, Microsoft (Cloud Accelerate Partner), Telstra (Business Accredited) and VMware (Professional Partner).