Correlation Based VMS Placement Resource Provision

In a Virtualized Data Center (VDC), a single Physical Machine (PM) is logically divided into one or more Virtual Machines (VM) that share physical resources. Therefore, dynamically resource provisioning plays an important role in VDC. Moreover the resource provider would like to maximize resource utilization, which forms a large portion of their operational costs. To achieve this goal, several consolidations can be used to minimize the number of PMs required for hosting a set of VMs. However, consolidation is often undesirable for users, who are seeking maximum performance and reliability from their applications. These applications may indirectly increase costs due to under-provisioning of physical resources. In this paper, the correlation-based VMs provisioning approach is proposed. Compared to individual VM-based provisioning, correlation-based joint VM provisioning could lead to much higher resource utilization. According to the experimental results, the proposed approach can save nearly 50% CPU resource in terms of overall CPU utilization.