• High VM Density and Eco4Cloud, a winning combination

Virtual Machine density represents the number of virtual machines that can run simultaneously on a single hypervisor without no performances degradation. In VMware terms, we can say that VM Density is the number of guest VMs that can be consolidated on a hypervisor without affecting application performance. Generally, the higher the VM density, the more efficient and cost-effective the system is.

Summarizing, we can refer VMs density as the following three contextual definitions related to performance:

  • Number of VMs running on a host;
  • Number of VMs that can run on a certain number of physical CPUs.

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Why is VM density important?

Basing on definition of VM Density, it is clear that it has a significant impact on virtual infrastructure acquisition costs.

Indeed VM density depends on many factors other than virtualization software vendor, such as storage type, network, server hardware, workload type.

Therefore, it is a metric that is now used to measure efficiency and it affects the total cost of ownership (TCO) of a Virtual environment.

vm density

Server CapEx: VM density will help you to determine how many servers you will have to buy in the future knowing the workload increase. By getting the best efficiency and optimal configuration allows the customer to run more VMs on less physical servers.

Thanks to this metric, you will determine how many physical machines you must maintain and how many other software licenses you will have to buy. So customers may not need to spend more CapEx buying extra servers, this provides particular benefits in TCO such as power, maintenance as well as licensing. Therefore, the main benefit of a VM density increase is hardware purchase delay or no purchase at all.

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Other Business benefits

VM Density is important in software license cost saving: how many component and/or add-on software tool in a virtual infrastructure is licensed on a per-processor basis?

A hypervisor that can run more VMs per processor, enables organizations to require fewer total hypervisors, and can create enormous cost savings in software licensing and hardware; power and cooling costs only increase that advantage. A hypervisor that can host even 50% more workloads may allow a customer to reduce their number of hypervisor instances by one-third or more.

How to improve VM density with Eco4Cloud

At Eco4Cloud we developed “Eco4Cloud Workload Consolidation”, a virtual infrastructure solution that improves the economics of virtualized data centers with an intelligent software platform. Thanks to our patented technology, Eco4Cloud Workload Consolidation increases VMs density on average by 40%, up to 150% with an optimal occupancy of physical resources and adaptive optimization of inherently variable workloads.

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