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The usage of large amounts of data has an immense potential for global economic growth and the competitiveness of countries with high technological standards. Vast amounts of data from different sources are collected and analyzed in order to seek economic profit and competitive advantages for companies and society in general. To gain profit from such data, it needs to be analyzed, processed, and interpreted...
Disaster recovery planning and securing business processes against outtakes have been essential parts of running a company for decades. As IT systems have become more important, and especially since more and more revenue is generated over the Internet, securing the IT systems that support the business processes against outages is essential. For cost reasons, we proposed Cloud Computing for disaster...
Infrastructure as a Service (IaaS) is commonly used to deploy distributed systems like Web applications. For every component of a distributed system, IaaS consumers need to select, configure, and deploy a virtual machine (VM), the image to run on the VM, and software to install on the image. These tasks involve multiple decisions, require complex and error-prone manual effort, and may occur unexpectedly...
Virtualization is the foundation of modern, cloud-based applications. The existence of virtual machines (VM) that host the components of such applications enables their portability and scalability. VMs are used in cloud infrastructures, and with dynamic operational requirements there is a need to move VMs within and across different clouds. The successful migration of VMs from one cloud to another...
As the sector of SaaS is being evolved, the need of portability and effective orchestration of Cloud-enabled applications over virtualised infrastructures is more apparent. In this paper we present a proof of concept (PoC) project together with industry partners which deals with the management of portable Cloud applications. Experimentation with a multi-tier Cloud application use case gives insights...
The advent of advanced virtualized IT infrastructures that can be provisioned as on-demand services, known as Infrastructure-as-a-Service (IaaS) Cloud Computing, has created new research challenges and opportunities. The capability to rapidly allocate and deallocate seemingly infinite amounts of system resources is a defining characteristic of this technological trend. Operating multi-tier applications...
As part of the Cloud Computing stack, Infrastructure-as-a-Service (IaaS) offerings become more and more widespread. They allow users to deploy and run virtual machines in remote data centers (the Cloud), paying by use. However, performance specifications for virtual machines provided by providers are not coherent and sometimes not even sufficient to predict the actual performance of a deployment....
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