We present two strategies to balance the load in a system with multiple virtual machines (VMs) through automated live migration. When the push strategy is used, overloaded hosts try to migrate workload to less loaded nodes. On the other hand, when the pull strategy is employed, the light-loaded hosts take the initiative to offload overloaded nodes. The performance of the proposed strategies was...

In this paper we present ARRIVE-F, a novel open source framework which addresses the issue of heterogeneity in compute farms. Unlike the previous attempts, our framework is not based on linear frequency models and does not require source code modifications or off-line profiling. The heterogeneous compute farm is first divided into a number of virtualized homogeneous sub-clusters. The framework ...

Live migration of virtual machines (VMs) is key feature of virtualization that is extensively leveraged in IaaS cloud environments: it is the basic building block of several important features, such as load balancing, pro-active fault tolerance, power management, online maintenance, etc. While most live migration efforts concentrate on how to transfer the memory from source to destination durin...

Live migration of virtual machines has been a powerful tool to facilitate system maintenance, load balancing, fault tolerance, and power-saving, especially in clusters or data centers. Although pre-copy is extensively used to migrate memory data of virtual machines, it cannot provide quick migration with low network overhead but leads to large performance degradation of virtual machine services...

Romero, Raul F. M.S., Purdue University, August, 2010. Live Migration of Parallel Applications. Major Professor: Thomas J. Hacker. It has been observed on engineering and scientific data centers that the absence of a clear separation between software and hardware can severely affect parallel applications. Applications that run across several nodes tend to be greatly affected because a single co...

Server consolidation is a vital mechanism in modern data centers in order to minimize expenses with infrastructure. In most cases, server consolidation may require migrating virtual machines between different physical servers. Although the downtime of live-migration is negligible, the amount of time to migrate all virtual machines can be substantial, delaying the completion of the consolidation...

Live virtual machine migration is a powerful tool offered by virtualization technologies. However, current implementations restrict its usage to local area networks. Extensions to wide-area networks have been proposed with systems for transferring disk state and transparently migrating network connections. Still, wide-area live migration remains expensive to use because of the bandwidth bottlen...