نتایج جستجو برای: iaas cloud
تعداد نتایج: 86733 فیلتر نتایج به سال:
With expanding demand for Cloud computing, numerous Cloud providers are offering services. Benchmarking is extremely important to compare their performance. In this paper, we study the performance of two IaaS clouds Eucalyptus 3 and OpenStack (version Essex) implemented on FutureGrid [1, 2], a test bed that allows researchers to conduct experiments to understand the behavior and utility of clou...
Optimizing the deployment of applications in Infrastructureas-a-Service clouds requires to evaluate the costs and performance of different combinations of cloud configurations which is unfortunately a cumbersome and error-prone process. In this paper, we present Cloud WorkBench (CWB), a concrete implementation of a cloud benchmarking Web service, which fosters the definition of reusable and rep...
Abstract—In this paper, we propose an automatic verification technology of software patches for user virtual environments on IaaS Cloud to decrease verification costs of patches. In these days, IaaS services have been spread and many users can customize virtual machines on IaaS Cloud like their own private servers. Regarding to software patches of OS or middleware installed on virtual machines,...
It is well known that cloud computing has many potential advantages over traditional distributed systems. Many enterprises can build their own private cloud with open source infrastructure as a service (IaaS) frameworks. Since enterprise applications and data are migrating to private cloud, the performance of cloud computing environments is of utmost importance for both cloud providers and user...
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...
An Approach for the Automated Analysis of Network Access Controls in Cloud Computing Infrastructures
This paper describes an approach for automated security analysis of network access controls in operational Infrastructure as a Service (IaaS ) cloud computing environments. Our objective is to provide automated and experimental methods to analyze firewall access control mechanisms aiming at protecting cloud architectures. In order to determine the accessibilities in virtual infrastructure netwo...
The goal of this paper is how to build cloud IaaS environment for operation, and integrate KVM and OpenNebula open sources to provide a cloud virtual environment for users. In the user interface part, this work can reduce the complexity of cloud resources accessing for the user part. This paper uses the web interface that is easy to understand, accessible for users in the operations. In the exp...
Cloud computing is a computing paradigm in which different computing resources, including infrastructure, hardware platforms, and software applications, are made accessible to remote users as services. Successful provision of infrastructure-as-a-service (IaaS) and, consequently, widespread adoption of cloud computing necessitates accurate performance evaluation that allows service providers to ...
ion allowing access to infrastructure resources (e.g. storage, computation, server, data center) on-demand and paid according to the required quality-of-service (QoS). • Platform layer: Known as Platform as a Service (PaaS) extends the IaaS layer by hiding the IaaS complexity. PaaS is accessed as one big system and not by accessing individual virtual machines. Therefore, it provides an abstract...
The advent of Cloud computing as a newmodel of service provisioning in distributed systems encourages researchers to investigate its benefits and drawbacks on executing scientific applications such as workflows. One of the most challenging problems in Clouds is workflow scheduling, i.e., the problem of satisfying the QoS requirements of the user as well as minimizing the cost of workflow execut...
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