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...es. This work proposes that the end-user, e.g. a patient, should be able to divide the execution environment for applications into separated domains isolated from each other so that medical data of a patient can only resides within her personal domain. Also, Bleikertz et al [6] develop an assurance language for isolation management in cloud computing environment. Prior literature also contains several processes on users authorization and access control models for cloud IaaS including [7,9] and, also, various processes for virtual resource management, e.g., virtual machine placement algorithms [10,13,18] for improving different aspects, e.g. high performance, load balancing. 6 Conclusion In this paper, we formally represent an isolation management process of virtual resources in cloud IaaS. We utilize attribute-based system [16] in order to represents different properties of cloud resources, such as colors (security clearance), as assigned attributes to them. Then, resources are organized together based on similar attribute values. We also develop a process to enforce co-location constraints for the VMs having conflict with each other which prohibits them to be scheduled in same physical serv...

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... Figure 8.6 (right), the FAILS metric for the three policies decreases significantly with increasing β. 8.4 Related work A large number of research efforts have been devoted to improve the efficiency =-=[5, 41, 62, 94]-=- and availability [46, 110] of distributed systems. Hardware-based techniques, which employ redundant power-facilities, cooling-facilities, switches, network links, and storages [47], have been propos...