Good ideas can be realized very quickly and with minimal costs, "said David Cearley.
Web cloud - "cloud computing" - is a favorite topic among IT vendors, which envisages major upheaval as the service model will take over the investment model. Gartner analyst David Cearley agree that the practical use of Cloud Model is about to accelerate. Unlike many, he has more actual examples to show to which companies have earned much of the appropriate use of this new style of IT. 
Cearley began his lecture Case Studies in Cloud Computing at Gartner IT Symposium in Cannes by pointing out that many businesses use Cloud services without even realizing it.
- Webex service for Web conferencing respond to all Gartner's criteria for a Cloud services , but very few Webex users think that it actually is about "cloud computing".
Cearley points elsewhere on the IT in this cloud is located on the part of Gartner's "hype cycle" where the attention and expectations are far greater than the actual use, and where increasing use leads to reduced expectations. When this "disillusionment ditch" is passed, the expectations will again increase with increasing use. Cearley are absolutely sure that this cloud will be very popular.
- We believe that by 2012 20 percent of companies use Cloud style to a substantial part of its information management.
Notice the nuances in this formulation: they will not go to just this cloud, or use the web cloud for the most part. But they will largely pick up central IT services from the network cloud.
Services from this cloud may be so various. Cearley presenting this sketch, to illustrate different types of services.
It is primarily services-colored in green, he is concerned, that is where you use this cloud to save their investments, either to do without their own servers for new services, its own middleware to run the self-developed applications, or even dropping locally installed applications for services such as e-mail or other forms of cooperation. Services colored in blue are more conventional, or more like Webex in that one does not think that using network cloud.
Success examples Cearley pulls out, are from different industries and from companies with very different in size.
Analyst David Cearley said many people can benefit from adopting this cloud is already today. They have in common that this cloud let the companies do something new. Some turned to suppliers like Amazon to manage large amounts of virtual servers over a shorter time. Other applications based on services from the network cloud. Others invested in platforms like Salesforce.com to quickly arrange new services for its customers.
- Cloud Project that ends in failure, is often where you move a safe, happy static applications, from the internal infrastructure. It detects Mon typical that security is poor and that neither has saved money.
A large company that has actively invested in this cloud to overcome obstacles in their own infrastructure and to reduce capital costs in favor of variable costs, is the global pharmaceutical manufacturer Eli Lilly, with nearly 40 000 employees and production in 13 countries. They get cooperation from Google services, software services from Alexa, Drupal and Sourceforge.net, and several types of services from Amazon.com.
- A typical example is a group of scientists who needed computer resources to run the tests. They were told that it would take twelve weeks before they could receive adequate resources from the internal infrastructure. But they got help from the IT department to build an environment in Amazon EC2. After half a day testing was started. They spared ie 12 weeks, and it cost them $ 89 in rent to Amazon.com.
Eli Lilly sums up saying that Cloud Investment allows more routine tasks that were previously very time-consuming, now hardly takes time at all: to put up a new server takes three minutes, compared with 7.5 weeks earlier. To add a new collaborative environment takes five minutes to the previous 8 weeks. And to put up a Linux cluster of 64 nodes takes five minutes to the previous 12 weeks.
That this cloud is excellent to put up temporary environments for different purposes is repeated in many of the positive experience.
A large energy company hired as a student one summer, and gave them the task to create a virtual environment on the Amazon to test a free applications within content management. The installation was done in one day. When testing was completed a few months later, it was all laid down, but "AMI", ie "Amazon Machine Image", is still available if the company at a later stage decide to put the content manager in manufacturing.
- This is a great company that has chosen to experiment, initially with non-critical but interesting features. They also had a business entity that wanted a blog and a wiki, but that was told to wait for three months on the internal server capacity. It took them one afternoon to set up a test environment on the Amazon. Two months later the system was put into production, after the company's security people had passed through the solution and exposed it for penetration testing.
Microsoft company Razorfish which provides services in marketing and design are also among Cearleys models for the appropriate use of this cloud: the need for a highly flexible infrastructure when they add up campaigns that customers will serve themselves: All customers require new servers, and all sets different requirements. On the other hand, all Razorfishs own services Web Centers and have a high level of security. It was therefore relatively easy for them to move from their own network infrastructure to the cloud.
- Razorfish has solved this by using the infrastructure and services to Rackspace. The savings are partly in time, partly in charge. Time to set up a solution for a client is reduced from four to six weeks, to 24 to 48 hours. Costs are reduced by 75 percent, from several tens of thousands of dollars a solution.
Some companies have found it expedient to organize their own services after the Cloud principals.
An asterisk example here is the Indian giant Wipro, which feeds on operational services. According to Cearley, this has given the following benefits:
Adding up an internal server takes 35 minutes, against the previous 46 days
Average load per server is 40 percent, compared with earlier just under 10 percent.
The average cost per server is reduced from $ 2000 to $ 800.
There are further gains in improved license management, more efficient use of bandwidth, and lower consumption of electricity.
Prior to the reuse of the servers practically non-existent. Now reuse contributes to reducing the ongoing investment by 30 percent.
A problem many meetings with this cloud is that they may well think of treating their data there, provided that they can continue to store them locally. In some cases, government regulations require that data be stored locally.
Cearley says that a U.S. supplier of healthcare, Presidio Health, solved this problem through a partnership with GoGrid and Appistry, for applications developed in Java and Spring framework. The company gained acceptance for a scheme in which data can be transferred temporarily to the network cloud, provided that all permanent storage occurs locally. It was also necessary to develop new operational tools, including for security, and negotiating a service agreement with sufficiently guaranteed uptime.
The guarantee is far stronger than the cloud supplier usually offer. The big advantage for the Presidio so far is that it has managed to increase its capacity by 50 percent without increasing their costs.
- That we pull out of our customers' experiences with this cloud, can be summarized in five points, end Cearley. - Web cloud works best with applications that re relatively independent of underlying systems, web server, for applications with highly variable demand for services that only last for short-term periods, and as required to get started quickly.
