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Basic types of Cloud Hosting

April 5th, 2013 No comments

The cloud computing is a service used over the Internet to stream data, I.T resources as well as applications to the users. It is basically used to utilize the software as a service which is more commonly known as SaaS. Even though Google is mostly known for its SaaS service, there are other social media industry such as Facebook and Twitter that have grown at an alarming rate. Apart from SaaS, the other cloud computing solutions that have come up are Platform as a Service (PaaS) and Infrastructure as a Service (IaaS) that are proving to be very beneficial for many companies. The cloud server models offer a great many features such as self-service, cost-savings, economies of scale and flexibility. Basically, the cloud deliver models are of various types but the more common ones are private services, public services and hybrid services. The cloud services offer many features due to which they are defined using various names such as community clouds, cloud streams, mobile clouds and federated clouds. The cloud services are built on the concept of virtualization. Its basis comes from the concept of centralizing the software and infrastructure on remote servers and managing them by using the laptops, tablets and smartphones. Let us now discuss the basic types of clouds namely, private, public and hybrid.

Public clouds

In this type, the I.T services are provided as a service over the Internet. This is known as the external cloud and it has very less control over the underlying technology infrastructure and is mostly quite affordable. It reduces the complexity encountered during operation. During testing and deploying new products, it takes up long lead times.

Private clouds

The I.T activities and functions are provided as a service in this cloud type. Even though I.T functions are offered, they are available only for a particular company or an organization. Since, it is a private cloud; there is no resource-sharing between the private cloud owner and outside agencies. This feature enables the users to do multi-tenancy easily.

Hybrid clouds

As its name suggests, this type is a combination of the public and the private clouds. The hybrid clouds not only provide the advantages of the dedicated servers but also the features of the public or private clouds. Users are given the facility of customizing rules related to security and the underlying infrastructure. The activities and tasks needed are allocated the necessary dedicated servers or cloud servers as and when the user requires.

Most common services

Apart from the basic types of clouds, the clouds are also categorized based on their service-type level. Based on this, there are three types of dominant services namely, SaaS, PaaS and IaaS.

Software-as-a-Service (SaaS)

If you want to access a remote product or e-commerce service over the Internet then you need to use the SaaS service. The best example of this service is the Amazon Web Services providing a remote CRM like a Salesforce or a datacenter.

Platform-as-a-Service (PaaS)

This service is specially made for those developers that want to deploy applications in the cloud without having to involve themselves with the server infrastructure. A great example of this kind of service is the Google apps store.

Infrastructure-as-a-service (IaaS)

The developers who sought to get maximum interaction with the underlying server infrastructure prefer the IaaS service. This service allows the advantage of deploying back-office applications on a remote environment.

Cloud Computing unleashing your potential

September 14th, 2012 No comments

For the technologist, cloud computing represents a commodious opportunity to drive infrastructure efficiencies. Additionally the architectural principles behind cloud offer a completely new business models which, in cases, offers a significant economic benefit. The data centre functions as the fundamental building block for cloud computing. Besides, there is a common layer, it is based on the compute model and serves as the basic building block for the sharing in cloud. With emergence of cloud computing, specialized services such as Backup-As-A-Service or Storage-As-A-Service will become more prevalent. The fundamental principle behind cloud is that it is a shared service.


On moving from dedicated to Cloud

The cloud model serves a couple of situations really well and in particularly the public cloud can serve these exceptionally well. Typically cases that involve sharp

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growth volumes, periodic and a-periodic high volumes and applications on-off on the fly are better served by the cloud infrastructure. There are some opportunities for savings that is remarkable for shared infrastructure as compared to dedicated infrastructure to manage peak demands. For public cloud, more efficient use of capital is done by assigning demand across multiple shared resources on the aggregation of multiple workloads.

Cloud Services for Recovery against Disaster

Cloud Computing has a wide recognition amongst the industry and academics as a tumultuous innovation. The incessant evolution that’s taking place and adoption of the same has literally changed the way IT services are understood, operated and delivered. There are many ways on how Cloud Computing could be used for leveraging organizations Disaster Recovery requirements to ensure business continuity.

The advent of Cloud Computing has bought the organizations with an alternative for hosting Disaster Recovery (DR) and Business Continuity (BC) requirements in Cloud Services. The recovery services are generally classified as:

  • Disaster Recovery as a Service (DRaaS) –Cloud Services are subscribed by organizations as a platform that helps them evade the failover of their IT resources during a disaster.
  • Business Continuity as a Service (BCaaS) – The services of a Business Continuity consultant are offered to an organization on subscription to the services from the Cloud Service Provider as a complete turnkey solution for their Business Continuity requirements.

By subscribing to DRaaS and BCaaS organizations can cut down the cost of BCP/DRP solutions, efforts of updating software versions and IT equipment can be simplified, resiliency can be improved against disaster and the services provided by Business Continuity Consultants can be leveraged from the Cloud Service Providers

The effect on the way

of deployment and use of information technology

With the adoption of cloud and particularly the public cloud, there will be a new set of challenges for corporations. For instance, Service Level Agreements for the public cloud are very important though hosting companies and outsources have vast experiences managing these. Some emerging areas where corporations need to develop expertise are auditing mechanisms, the selection processes for determining service providers, geographic access, end-user constraints, integration into corporate directories and end-user provisioning alas understanding national constraints such as data sovereignty requirements.