Before revision: By virtualizing servers, server hypervisors (VMware ESX, Microsoft Hyper-V, Citrix Hypervisor, Linux KVM, Xen ) increased the utilization rates for server resources, and provided management flexibility by de-coupling servers from hardware.
After revision: ,z/VMBy virtualizing servers, server hypervisors (VMware ESX, Microsoft Hyper-V, Citrix Hypervisor, Linux KVM, Xen ) increased the utilization rates for server resources, and provided management flexibility by de-coupling servers from hardware.