Cloud Computing The Text

Introduction to Cloud Computing. On premise computing. What Is Cloud Computing. Cloud Computing Characteristics. Cloud Computing Provides On Demand Self Service. Cloud Computing Encompasses the Characteristics of Grid Computing. Grid computing. Cloud Computing Encompasses the Characteristics of Utility Computing. Cloud Computing Utilizes Broad Network Access. Cloud Computing Pools Computing Resources. Cloud Computing Often Occurs on Virtualized Servers. Different Types of Clouds. Cloud Computing Services. Infrastructure as Service. Infrastructure as service IaaS model. Platform as Service. Platform as service PaaS model. Software as Service. Software as service SaaS delivery model. The Benefits of Cloud Computing. Benefit Cloud Computing Has a Positive Impact on Employees. Benefi t Cloud Computing Can Save Money. Benefi t Cloud Computing Can Improve Organizational Flexibility and Competitiveness. Concerns and Risks with Cloud Computing. Concern Legacy IT Systems. Concern The Regulatory and Legal Environment. Concern Criminal Use of Cloud Computing. Web Services and Service Oriented Architecture Web services. Service oriented architecture. Extensible markup language XML. Hypertext markup language HTML.

The system enables individual medical sites to store, process, and manage mammograms as digital images and to enable their use through data mining and sharing of these mammography archives. Radiologists can collaborate on diagnoses without being in the same physical location.

Amerijet decided to virtualize the servers in its data center. As a result, the carrier was able to run more than 120 virtual machines on just 14 physical servers. The entire conversion process to virtualized servers took a total of just 10 hours. The benefits were compelling:

• Amerijet is able to file a flight plan for a particular aircraft in 2 minutes versus 45 minutes prior to virtualization. This faster process enables the fi rm to get planes in the air faster and to meet more customs cutoff times for international freight clearance. As a result, Amerijet’s customers do not have to wait an extra day to receive their shipments.

• Amerijet has realized a 60 percent reduction in data center energy costs.

• Amerijet managers receive cargo inventory reports in seconds versus 30–40 minutes prior to virtualization.

• Amerijet has experienced no unplanned downtime since deployment of its virtualized servers.

Businesses are increasingly employing cloud computing for important and innovative work.

Lionsgate has experienced many benefi ts from using AWS. The fi rm has reduced the time required to deploy infrastructure from weeks to days or hours. Further, testing and development for its SAP applications also requires less time. AWS has increased the speed of building servers, improved disaster recovery and systems backup, and increased systems availability. The company avoided acquiring additional data center space, saving an estimated $1 million over three years. Overall, Lionsgate believes that moving to AWS saved the company about 50 percent compared to a traditional hosting facility.

These benefits have helped Lionsgate become more agile and more responsive to rapidly changing conditions in the marketplace. AWS has also contributed to helping the company maintain its systems security. Lionsgate is able to use its existing hardware policies and procedures for a secure, seamless, and scalable computing environment that requires few resources to manage.

The NSA was running out of storage space for hundreds of different databases that contain information needed to run the agency as well as to produce intelligence on foreign matters. As a result, NSA analysts had to access many different databases to do their jobs. Questions that spanned more than one database had to be manually integrated by the analyst. The agency had to consolidate its databases to make its analysts more effi cient and effective. At first, the NSA decided to simply add more storage capacity. However, this approach actually added to the problem, so the agency decided to implement a private cloud.