VMware’s vSphere provides 50% application performance increase with DRS
By Tarry Singh at 10 July, 2009, 11:29 am
Recent lab tests were conducted with a mix of heavily- and lightly-utilized Microsoft SQL Server databases running in virtual machines on a VMware vSphere cluster with four VMware vSphere hosts. Using DRS resulted in a 47 percent higher aggregate database transaction throughput compared to an environment with no virtual machine load balancing. The results demonstrate convincingly that dynamic virtual machine load balancing is a must-have requirement, not only for greater hardware utilization through higher consolidation ratio, but also for virtualizing business critical applications.
“These tests demonstrate how VMware DRS optimizes efficiency while providing guaranteed levels of performance. This allows customers to maximize the potential of their datacenter resources, in an automated, controlled way,” said Dr. Stephen Herrod, chief technology officer and senior vice president of R&D at VMware. “VMware vSphere 4 is the only virtualization platform that includes a dynamic virtual machine load balancing capability. By optimizing resource use, DRS enables customers to achieve higher consolidation ratios, resulting in the lowest overall cost per application. DRS is one of the many features that make VMware vSphere the best choice for virtualizing all of your applications.”
When customers consolidate servers onto fewer physical hosts and there is an unexpected spike in the resource demands of the virtual machines, the total resource requirements can exceed the available resources on a host. VMware DRS provides an automated mechanism that relocates the virtual machines to hosts where resources are readily available by continuously balancing capacity and ensuring that each virtual machine has access to appropriate resources at any point in time. VMware DRS makes optimal decisions in real time, making it superior to any manual, administrator-dependent mechanism.
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