Virtualization – KVM & Citrix XenServer Introduction
In the previous Virtualization article, we had discussed the virtualization topics. This is one of the frontier domain in virtualisation. Here we will discuss a few words about Red Hat Enterprise Virtualization (KVM) and Xen / Citrix XenServer:
Suggestable Read: VMware and Hyper -V introduction
Also Read : Type 1 vs Type 2 hypervisors
Red Hat Enterprise Virtualization (KVM):
Red Hat Enterprise Virtualization is an Economic exertion of the KVM Type-1 hypervisor.
KVM is a Kernel-based Virtual Machine and it is a free and open source virtualization of architecture for Linux distributions. KVM virtualization is sustained by Red Hat Inc. and also to Canonical Ltd. This KVM uses a type-2 hypervisor that dwells within the Linux kernel.
Red Hat Enterprise Virtualization uses the SPICE protocol and also uses the VDSM (Virtual Desktop Server Manager) with the RHEL-based centralized management server. This RHEV (Red Hat enterprise Virtualization) supports some of the following advanced features they are:
The Network bonding, VLAN (A virtual LAN), and 10GB space.
Live migration (This introduces a process of moving a running virtual machine or an application between the different physical machines without disconnecting the client or an application).
The policy-based workload balancing.
High availability, power saving, cluster maintenance, image management, templating, thin-provisioning, and event monitoring.
This Hosts will support up to 160 cores of data and 2 TB of RAM (Random Access Memory). The Guests will support up to 64 vCPUs (Virtualization CPU’s) and 512 GB of RAM.
Self Service for user portal login.
Reporting and monitoring the detailed historical of capabilities and monitoring the historical usage of trending and quality of service.
For KVM Installation and Configuration follow the below YouTube video.
Xen / Citrix XenServer:
Citrix XenServer is an Industry leading open source platform for cost-effective cloud, server, and desktop virtualization infrastructures.
XenServer is a type-1 hypervisor of bare-metal. It is just as a Red Hat Enterprise Virtualization (RHEV) uses KVM (Kernel-based Virtual Machine) of Citrix uses Xen in the commercial XenServer.
In 2007 the Citrix XenServer implements the XenSource, who supports the Xen. The Xen is an open source project and a community at Xen.org. The XenServer is an Economical tier-1 hypervisor from Citrix Xen Server. This has 4 editions. Accordingly, Citrix has also branded their other proprietary solutions like XenApp and XenDesktop with the name of Xen. This XenServer offers some more features such as:
Conversion of tools.
Integration of System Centre Virtual Machine Manager.
Snapshot and revert.
XenCenter Management Console (In the free edition also).
Live migration (In the free edition).
Live storage migration.
Virtual switch distribution.
Monitoring and alerting and more.
I hope this article gives you the basic knowledge on virtualization concepts. Please follow next coming articles to know more about virtualization and it’s concepts.