Solved

Virtualization - XEN

Posted on 2013-12-15
7
272 Views
Last Modified: 2013-12-25
What is XEN?

What is KVM?

is RHEL comes with XEN? i was reading some posts in google and its say KVM over XEN?

what is really the relation between kvm and xen?

please explain.
0
Comment
Question by:ittechlab
  • 4
  • 3
7 Comments
 
LVL 34

Assisted Solution

by:Dan Craciun
Dan Craciun earned 375 total points
ID: 39720343
Read here for a comparison: http://www.linux.com/news/enterprise/systems-management/327628-kvm-or-xen-choosing-a-virtualization-platform

Basically, XEN is a bare-metal hypervisor, while KVM is included in the Linux kernel.

HTH,
Dan
0
 

Author Comment

by:ittechlab
ID: 39720386
0
 
LVL 34

Accepted Solution

by:
Dan Craciun earned 375 total points
ID: 39720419
Xen is a type 1 hypervisor, KVM type 2.

If you're going with RedHat you might as well stick with KVM. It is my understanding that's the favorite for the major Linux distributions, which should mean better support.
0
VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

 

Author Comment

by:ittechlab
ID: 39726838
Redhat has own hypervisor too right. type 1. what is that?  is that based on xen?
please explain.
0
 
LVL 34

Assisted Solution

by:Dan Craciun
Dan Craciun earned 375 total points
ID: 39726973
Extract from here: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html-single/Hypervisor_Deployment_Guide/#chap-Deployment_Guide-Introducing_Red_Hat_Enterprise_Virtualization_Hypervisors

The Red Hat Enterprise Virtualization (RHEV) Hypervisor is a compact, full-featured virtualization platform for quickly and easily deploying and managing virtual machines.
[...]
The RHEV Hypervisor is based on the Kernel-based Virtual Machine (KVM). KVM is an advanced and efficient virtualization hypervisor implemented as a Linux kernel module. As KVM is a kernel module, it leverages the existing Red Hat Enterprise Linux kernel and benefits from the default kernel's extensive testing, device support and flexibility.
The RHEV Hypervisor is constructed using a subset of packages from Red Hat Enterprise Linux along with several special RHEV packages. RHEV is certified for all hardware certified for Red Hat Enterprise Linux.

What this means? The hypervisor runs under Linux, so it's a type 2 hypervisor.
0
 

Author Comment

by:ittechlab
ID: 39729860
[root@Client-4 ~]# virsh list
 Id Name                 State
----------------------------------


I have two vm which i created in kvm. i can't see when i ssh and run this command.

if i run virt-manager its shows two vms. please advise.
0
 
LVL 34

Expert Comment

by:Dan Craciun
ID: 39730250
You're going to have to post this as a separate question.
I use Hyper-V day to day, and I only studied other virtualization options to see if I find something better suited to my needs.
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Last article we focus in how to VMware: How to create and use VMs TAGs – Part 1 so before follow this article and perform the next tasks, you should read the first article how to create the TAG before using them in Veeam Backup Jobs.
Veeam Backup & Replication has added a new integration – Veeam Backup for Microsoft Office 365.  In this blog, we will discuss how you can benefit from Office 365 email backup with the Veeam’s new product and try to shed some light on the needs and …
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now