Abstract:
Data centre virtualization creates an agile environment for application deployment. Applications run within one or more virtual machines and are hosted on various servers throughout the data centre. It improves resource utilization through server consolidation, but it also makes resource management more complex. However, due to the uncertainty of workload variation, the workloads may be unbalanced in the virtualized system, leads to application’s SLA violation. In order to deal with such problem, the mathematical expectation approach is used to determine the hotspots in virtualized server. The system expresses the VM migration and replication to relocate virtual machines (VMs) from overloaded servers to underloaded ones.
