Linux Virtualization Concepts

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Internal

Generic Virtualization Concepts

Virtualization Concepts

Virtualization Solutions from RedHat

RedHat Enterprise Linux as Virtualization Platform

RHEL 7 includes a hypervisor and a number of virtualization tools, which allows running guest operating systems. However, the solution supports a limited number of guests per host and a limited range of guest types.

RedHat Virtualization

RedHat Virtualization is an enterprise virtualization solution based on the KVM technology.

KVM (Kernel-based Virtual Machine)

libvirt

Storage and Virtualization

Networking and Virtualization

Steal Time

"Steal time" is the percentage of time a virtual CPU waits for real CPU while the hypervisor is servicing another virtual processor.

A high value means the physical CPU is overcommitted and more physical CPU should be allocated to the environment - or the VM should be moved on a different physical server. The steal time is reported by vmstat st.