At one level cloud computing is just Internet enabled time sharing. Instead of organizations investing in all the Information Technology (IT) assets such as hardware, software and infrastructure they need to meet business needs; cloud computing technology makes these resources available through the Internet. Cloud computing allows an organization to adopt a different economic model for meeting ...

Enterprises with existing IT infrastructure are beginning to employ a hybrid cloud model where the enterprise uses its own private resources for the majority of its computing, but then “bursts” into the cloud when local resources are insufficient. However, current approaches to cloud bursting cannot be effectively automated because they heavily rely on system administrator knowledge to make dec...

The extent and importance of cloud computing is rapidly increasing due to the ever increasing demand for internet services and communications. Instead of building individual information technology infrastructure to host databases or software, a third party can host them in its large server clouds. Large organizations may wish to keep sensitive information on their more restricted servers rather...

Secure Mobile-Cloud is a framework proposed to secure the data transmitted between the components of a mobile cloud application. In addition, the framework, takes into account the following aspects: 1) the users options regarding the security level required for private data and 2) the device energy consumption. The framework includes several distributed components. Some of these components are ...

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Despite significant attention and substantial efforts both in industry and academia, cloud computing has yet to reach its full potential. Commonly stated obstacles for cloud adoption include confusion due to multiple delivery models (SaaS, PaaS, IaaS) and deployment scenarios (public clouds, private clouds, cloud bursting etc.). Other frequent concerns relate to risks with outsourcing, data leg...

In recent years, a Cloud computing system has been popularly used. Among them, a hybrid Cloud is focused, which combined a public Cloud operated by service providers and a private Cloud constructed inside a company. Because a private Cloud is considered to be secure and a public Cloud is scalable, it is possible to build a Cloud computing system that works effectively by combining the both type...

While Cloud services offer flexibility, scalability and economies of scale, there have been commensurate concerns about security. As more data moves from centrally located server storage to the Cloud, the potential for personal and private data to be compromised will increase. Confidentiality, availability and integrity of data are at risk if appropriate measures are not put in place prior to s...

Managing virtualised computing, network and storage resources at large-scale in both public and private cloud datacentres is a challenging task. As an open source cloud operating system, OpenStack needs to be enhanced for managing cloud datacentre resources. In order to improve OpenStack functions to support cloud datacentre resource management, we present OCReM: OpenStack-based cloud datacentr...

Cloud computing offers a prominent service for data storage and it refers to a broad set of technologies, policies and controls deployed to provide security for data and applications. As more businesses move to the cloud, security is a leading concern in the cloud environment, it’s essential that companies work with partners that understand best practices of cloud security and provide transpare...