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Hypervisors: Which is right for you?
This article is part of the August 2009, Vol. 13 issue of Virtual Data Center
Hypervisors and the workloads they virtualize allow organizations to make more effective use of hardware. When organizations began to discover that they were running workloads on physical servers with less than 15% utilization, they began turning to server virtualization hypervisors to increase the utilization levels of their physical servers to 80% or more. More on hypervisors VirtualBox hypervisor part of Oracle roadmap Parallels aims bare-metal virtualization hypervisor at cloud Smartphone hypervisors: What's the use? A physical server running multiple virtual workloads -- usually 10, 20, 30 or more virtual workloads per physical server -- provides a more efficient utilization model and supports the concept of a green data center. The magic that makes server virtualization possible is a small piece of code called a hypervisor -- a tool that exposes hardware resources to support the operation of multiple virtual machines (VMs), which are operating system instances that are designed to share resources such as CPU cores, RAM, ...
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Features in this issue
Virtualization and tight budgets have changed IT staffing in modern data centers. Find out how to blend skills and technology for the best mix.
Get faster and smaller, hypervisor-free virtual machines with container-based operating system virtualization. Expert Greg Shields shows how to get greater VM performance in less physical space in this tip.
Most hypervisors have the same basic features, but the devil is in the details. Comparing hypervisors' CPU usage, memory and processor support will help you make the right choice.