It turns out that the Cloud, as worldly as the premise is, is restrained by earthly borders. It may simply be illegal to post your information on a Cloud. If you are in Canada, for example, and you want to post your data on an American Cloud, you may run afoul of Canadian law, said Velte.
The Canadian government has declared that government IT workers may not use network services that are operating within U.S. borders. The reason is that the Canadian data stored on those servers could be negatively impacted based on the Patriot Act, he said. And the same can be said of Clouds operating outside the United States. You probably dont know the laws, if any, governing your privacy and protection in a foreign country.
In practice, enterprises are facing an onslaught of Cloud products. While some vendors are fudging, even outright misrepresenting, most are not. Confusion reigns for now. The terminology and ontology for Cloud computing is still evolving, said Michael Salsburg, spokesperson for the worldwide non-profit organization, Computer Measurement Group, and chief architect of Real-Time Infrastructures at Unisys. But there are some definite characteristics of a Cloud that can be identified now:
Elasticity Enterprises will take advantage of Cloud computing when they require a high variability on compute power. For example, assume a company requires double the number of Web and application servers a few times a month. They do not want to pay for the capital expense of having dormant servers on the floor most of the time. In the Cloud, compute power can grow and shrink. The enterprise pays on a usage basis.
Offloading Context About 80% of the IT budget is dedicated to keeping the current infrastructure running. This leaves little time or money to work on new, strategic directions. Moving the standard computing environments/tasks to the Cloud off-loads the up-front capital expenses as well as the operational expenses. For small companies, a Cloud can provide efficient enterprise-class best practices.
Anything as a Service Imagine, through a Web browser, requesting a set of servers and storage devices to be provisioned and configured to run a large-scale application. This can be requested and managed as a set of service requests that can be made from any browser, including a cell phone. It is this light-weight, service-oriented approach that is the hallmark of Cloud computing.
Parting the Clouds
Lemkin said the number of SaaS services has mushroomed in sync with the Webs growth as the preferred channel to do business. However, he warns that many SaaS services are not truly Cloud services. While we are seeing the introduction of strong SaaS offerings in CRM, finance, contract management and e-signatures, what we are not seeing is the integration of these services on the Web, he said. Instead of being completely siloed, the Cloud enables services to be completely, 100% integrated on the Web, with no install, no IT, and no headaches.
What were called mash-ups in Web 2.0, he said, will swell in significance as the Cloud enables data, applications and core business processes to follow Internet users anywhere, anytime, in any application.
The challenges of Cloud computing is that only a few applications are truly built for the Cloud, as Web 2.0 solutions, said Robert Klotz, vice president of Technology at Akibia. Software as a service solutions come close, but they are not truly Web 2.0.
Just as some believe the technology isnt quite up to speed, many see the current performance of the Cloud easily matched on-premise; including scalability. Critics point out that well-managed company data centers also provide economies of scale, said Paco Nathan, principal scientist at ShareThis, an social network-sharing tool. The dirty little secret is that company data centers rely on purchasing rack space and power feeds in advance and buying equipment which amortizes over years and tends to fail and requires repair and replacement plus large staffing and training. The Cloud, does not.
Conversely, there are dirty little secrets in the Cloud too. Multi-tenancy remains the characteristic that delivers the greatest economic advantage so caveat emptor: just because an app. is hosted in the Cloud doesnt necessarily mean its SaaS, explains Bob Moul, CEO of Boomi, an on-demand integration vendor. How do you know if its true SaaS? Try to trial and/or implement the application today without human intervention by the vendor.
At the end of the day, the decision to move to the Cloud, stay firmly on the ground, or move to hybrids somewhere in between, will be made based on a companys specific needs. For now, its just another set of tools to use―or not.
The concept of Cloud computing at its core, represents major shifts for companies and service providers from internally to externally, from tethered to portable, from physical security to virtual security, from siloed to pooled, explains Don Norbeck, director of Product Strategy at SunGard.