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Linux

KVM Stands for Kernel Virtual Machine.  KVM is a virtualization technology built into the Linux Kernel based on QEMU (Quick Emulator).  QEMU allows for virtualizing hardware, all the way from a complete hardware stack to a single device.  KVM basically takes QEMU and allows it to use hardware extensions to achieve better performance.

In this article I will outline the steps it takes to get a two node KVM farm running using Open Filer for your storage and Fedora Core 14 for your KVM hosts.  By the end of this tutorial you should know how to install and configure KVM, create a virtual machine and perform a live migration between two hosts.

Throughout these instructions I will use gedit for the text editor.  you can of course use any text editor you are comfortable with.  For example, if you are doing this through SSH you will want to use vi or nano.

At first glance Network Attached storage, also called  NAS is not much different from a Storage Area Network (SAN).  They both attach to a network, they both provide storage to computers on their network.  There are some major differences between the two storage roles.  However, these two things are becoming more and more the same thing.

As there are a variety of tasks you may need to achieve, there are many different ways to connect to your storage system.  Each operating system has differing methods for utilizing these protocols, and different operating systems will perform differently with each protocol.  For the purpose of this article we are going to focus on two methods of connecting to storage; LUN’s and File Shares.   In my examples I will be using Open Filer as the storage device, then various Linux and Windows editions to connect to the storage system.

In this article I will be covering only the client side of things.  You can see my article on Configuring Open Filer if you wish to quickly setup the server side of any of the protocols I have outlined in this article.  In the future I will post more articles detailing how to create shares without using a pre-packaged solutions like Open Filer.

In today's video I will cover how to configure Open Filer; including authentication, creating volumes and several connection protocols.  For information on how to install Open Filer, please see my tutorial on installing open filer.  That can be found at the following link:

http://www.everythingvm.com/content/openfiler-version-23-install-tutorial

*Note* Written instructions are at the bottom of the page

Today's video shows how to install Open Filer in a Virtual Machine. I will be including more videos soon on how to configure the various parts of Open Filer.

Open Filer is a very easy to use storage system which integrates with Active Directory and LDAP. It supports NFS, iSCSI, SMB, etc... It has many features including Snapshots, Replication, and High Availability. There is a both a Community Version (Free) and a Commercial Version (Not Free).
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