Use virtual servers


Instead of using a dedicated server for each project, and loading it up to 20% of its capability, pool machine resources through a hypervisor. One physical machine can offer the same service as 4 dedicated servers at 20%. This optimizes the use of the processor and RAM while consuming less electricity than multiple physical servers. This method also reduces the amount of electronic waste (WEEE) generated by the website.

Use virtualization software such as Vmware, Xen or KVM.

This best practice should only be applied if it is coherent with your project's specifications.
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