ion Level Feature Existing Clouds Application monitoring Auto-scaling Non-live migration Mutable Hypervisor Page sharing [81, 145] Overdriver [154] Revirt [65] Remus [61] Live migration [57] Cross-provider live migration Exposed Hardware vSnoop [92] Superpages [121] Page coloring [93] Non fate-sharing Unsupported paravirtualization Table 3.1: Cloud abstractions and extensions they enable maxima...

In order to reduce energy consumption of data centers while employing infrastructure resource effectively, a comprehensive resource management method using an improved online energy saving mapping algorithm for virtual machines of data centers is proposed. An intelligent feedback management framework is built for online resource optimization. We propose reinforcement learning and threshold base...

(ABSTRACT) High availability is a critical feature of data centers, cloud, and cluster computing environments. Replication is a classical approach to increase service availability by providing redundancy. However , traditional replication methods are increasingly unattractive for deployment due to several limitations such as application-level non-transparency, non-isolation of applications (cau...

In traditional data center numbers of services are run onto the dedicated physical servers. Most of the time, these data centers are not used their full capacity in term of resources. Virtualization allows the movement of VM from one host to the another host ,which is called virtual machine migration, so these data centers can consolidate their services onto lesser number of physical servers th...

Virtualization became recently a hot topic once again, after being dormant for more than twenty years. In the meantime, it has been almost forgotten, that virtual machines are not so perfect isolating environments as it seems, when looking at the principles. These lessons were already learnt earlier when the first virtualized systems have been exposed to real life usage. Contemporary virtualiza...

Virtualization solutions appear as alternative approaches for companies to consolidate their operational services on a physical infrastructure, while preserving specific functionalities inside the Cloud perimeter (e.g., security, fault tolerance, reliability). These consolidation approaches are explored to propose some energy reduction while switching OFF unused computing nodes. We study the im...