Cloud Computing Service Offerings
- Infrastructure as a service (IaaS) displaces in-house servers, storage and networks by providing those resources on-demand.
- Platform as a service (PaaS) adds a layer to the infrastructure, providing a platform upon which applications can be written and deployed.
- Software as a service (SaaS) refers to applications running on cloud infrastructures, typically delivered to the end user via a web browser.
- Human as a Service (HuaaS) some services rely on massive-scale aggregation and extraction of information from crowds of people. Each individual in the crowd may use whatever technology or tools he or she see fit to solve the task.
Characteristics of Cloud Computing
- On-demand access. Cloud computing offers rapid fulfillment of demand for computing and has the continuing ability to fulfill that demand as required.
- Elasticity. Computing is provided in the amount required and disposed of when no longer needed.
- Pay per use. Much like a utility, cloud resource charges are based on the quantity used.
- Connectivity. All of the servers are connected to a high-speed network that allows data to flow to the Internet, as well as between computing and storage elements.
- Resource pooling. The cloud providerís infrastructure is shared across some number of end customers, providing economies of scale at the computing and services layers.
- Abstracted infrastructure. The cloud end customers do not know the exact locations or the type(s) of computer(s) their applications are running on. Instead, the cloud provider provides performance metrics to guarantee a minimum performance level.
- Little or no commitment. This is an important aspect of todayís cloud-computing offerings, but as we will see here, it interferes with delivery of the services the enterprise demands.
Market Size & Current Investments
Research outfit Gartner describes this opportunity as the most hyped subject in the IT industry. IDC, another leading firm, estimated that cloud IT spending was at $16,325 million in 2008 and would reach $42,270 million by 2012.CAGR of 27%.It means this Cloud computing will not even crack 10% of $493,173 million (by 2012) IT Spending 2 years from now. But the IT Suppliers have started focusing more on the cloud Computing and hence this could trigger the wave of the cloud computing from 2013.
Research analysts of Merrill Lynch identified 10 companies with exposure to the Cloud, as well as a number of other promising Cloud computing service providers and enablers. Amazon is perceived as one of the major players in the business, offering a wide range of prominent Cloud computing services such as Elastic Compute Cloud (EC2), Simple Storage Service, SimpleDB and Simple Queueing Service (SQS).
Potential Risks involved
Cloud solutions are seen as having the potential to both dramatically reduce costs and increase the rapidity of development of applications. However, the security readiness of cloud computing is commonly cited among IT executives as the primary barrier preventing organizations from immediately leveraging this new technology.
The cloud provider can accidentally allocate insufficient resources to the customer, which can degrade the performance of the customerís services and cause him to miss his Service Level Agreements.
The machines in the cloud can be mis-configured or defective and can consequently corrupt the customerís data or cause his computation to return incorrect results .There are quite a few of them as above.
Outlook and Future
Many of the current cloud end customers use price as their primary decision criterion. As a result, service providersí offerings tend toward a least common denominator, determined by the realities of providing cloud services at the lowest possible price. At the same time, the cloud-computing market is becoming more crowded. Due to this, many of the End users /Clients go by the lowest pricing decisions. But whatever the analysts, rating companies say, we still believe this is an Opportunity in its Infancy.
Nevertheless to say, the Cloud Computing market has got a huge potential to grow & provide great cost reductions for the businesses. To get rains with this cloud, and make this service a GAMECHANGER, the service providerís must realize the gaps in this technology and fill them at the earliest.
Next Up: Some Mind-blowing Toons from our Cartoonist Sakshi - Tomorrow! - Keep watching this space...
Epilogue to this article - Cartoon series on Cloud Computing: http://www.faadooengineers.com/conte...cartoon-series!!