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Technically the KVM hypervisor is comprised of the KVM kernel modules and the Qemu virtual machine environment. Qemu is an
open-source computer emulator. In order to present virtual network, video, and block devices to KVM virtual machines, KVM uses the Qemu virtual machine environment, the most power feature of Qemu. Most KVM developers are Qemu developers and vice versa
and operational costs, as you don’t have to support a separate hypervisor. Additionally, the KVM architecture allows administrators to run native applications along side of virtual machines, providing true fl exibility and datacenter consolidation. And fi nally, this also means that KVM enjoys wide spread use, regardless of the Linux distribution; almost all modern Linux distributions support and include KVM.
Technically the KVM hypervisor is comprised of the KVM kernel modules and the Qemu virtual machine environment. Qemu is an open-source computer emulator. In order to present virtual network, video, and block devices to KVM virtual machines, KVM uses the Qemu virtual machine environment, the most power feature of Qemu.
Most KVM developers are Qemu developers and vice versa. The two projects are designed to work together and we usually speak of them together as “KVM.” (KVM is released as part of the Linux kernel, while Qemu is released independently as a multi- platform emulator).
The fl exibility, availability, and capability of KVM has also played a large part in the growth and success of cloud computing. Over 62% of OpenStack deployments use KVM as the hypervisor, as reported in the recent OpenStack User Survey.
What is Open Virtualization (oVirt)?
Open Virtualization, or oVirt, is both an open source project and community. oVirt the “community” provides development and governance for oVirt the “project” that develops an ecosystem and management system around the KVM hypervisor. The most visible piece of oVirt is a product called “oVirt Engine”, which is a full-featured management platform that manages resources such as hypervisors, storage domains, virtual machines, virtual networks,
and other related pieces. And while oVirt is quite capable of handling production workloads, it also serves as the “upstream” project for Red Hat Enterprise Virtualization (RHEV), which is a fully supported product of Red Hat. As new features are developed and hardened in oVirt, they are then pulled into RHEV. In this sense, oVirt is both a viable solution in and of itself, as well as a development sandbox.
While there are other open source solutions and some management products that support open source hypervisors, oVirt is the fi rst comprehensive virtualization platform. From a project standpoint, the governance is modeled after the Apache Foundation. The board is comprised of people from Red Hat, SUSE, Intel, NetApp, Cisco, IBM, and Canonical. This board representation is important from the standpoint that in order to have a vibrant community, oVirt cannot be successful if it only represents Red Hat; it has to have support and contributions from other Linux distributions and technology leaders.
For more information about oVirt, visit:
http://www.ovirt.org/Home
What is the KVM Forum? The KVM Forum is an annual technical conference that is co-located with either LinuxCon North America or LinuxCon EMEA. It brings together KVM developers, engineers, architects, and users in a single event meant to enable and further the ecosystem around KVM.
Like traditional trade conferences, there are speaking sessions, demonstrations, road map reviews, and many impromptu discussions.
This past October, the KVM Forum was held during the same week as LinuxCon EMEA in Edinburgh, Scotland; previous locations included Barcelona and Vancouver. While it might seem that KVM Forum would pull folks away from LinuxCon, it really does not. There are many facets to Linux, of which one is KVM. KVM Forum attendees typically register for LinuxCon as well, and attend sessions from both conferences.
For more information and the Linux Foundation KVM, visit:
http://www.linux-kvm.org/page/Main_Page
The Open Virtualization Alliance
The Open Virtualization Alliance (OVA) was founded two years ago to help advance adoption of the Kernel-based Virtual Machine (KVM) hypervisor by providing education, best practices and nurturing a vibrant ecosystem. The mission of the OVA, now a Linux Foundation Collaborative Project, is to accelerate the adoption of KVM as on open alternative in enterprise-class virtualization and cloud solutions, through increasing overall awareness and understanding of KVM.
The OVA Governing Board, made up of HP, IBM, Intel, NetApp and Red Hat, and its 200+ Participating Members and Supporting Organizations are focused on fostering the use and ecosystem around the KVM hypervisor, and to provide context around KVM-based solutions. For more information about the Open Virtualization Alliance and its members, visit:
http://www.openvirtualizationalliance.org February 2014 I
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