Freedom, flexibility, high availability and efficiency. Empower your workforce today
Everything I am about to demonstrate to you here is free. You won’t have to spend a penny on software to build this architecture, the end result here is a centralised storage system that can be used for iSCSI or NAS storage hosting to all your ESX clients to enable the use of VMotion, HA and DRS services.
VMware ESXi is free and can be downloaded here. Openfiler NAS/iSCSI appliance is free and can be downloaded here
Let us begin.
First of all, we will build or iSCSI or NAS device using ‘Openfiler’. You can download Openfiler from the link above, it is an easy installation (very similar to VMware ESX actually). Here are the required steps to get Openfiler up and running:
Once you have installed Virtual Center and set up your first virtual machine from your standard build documentation, you may want to use this new virtual machine as a template or clone to create many others.
Virtual Center supports the cloning of virtual machines and can also prepare the virtual machine for cloning by using Microsoft’s sysprep utility.
Here is how it is done:
The following procedure assumes that you have 2 ESX servers built already or have the ability to do so, and that Virtual Center is up and ready.Setting up a Windows 2003 Server as a software iSCSI target. First, you will need the iSCSI components which comes with ‘Windows Unified Storage Server’ embedded OS.
By default, Virtual Center only displays a limited amount of performance data within its statistics section. This is how you change it do display much more.
Some interesting features from VMware included in ESX 3.5 Update 2. Most interesting is the official support for Virtual Machine High Availability and the ability to extend virtual disks while machines are running. Also included is the ability to clone virtual machines while they are powered on, which may suite well for some organisation when it comes to disaster recovery (cloning a VM and then copying the clone offsite)
Below are details ripped from VMware’s website.
If you talk to CIOs who really “get” virtualization, the benefit that excites them the most is not cost savings but agility. I’m talking about the ability to say yes, quickly, to a business side request. Virtualization is helping smart IT leaders morph from “no” people to “yes” people. That’s a huge shift for many IT organizations and companies. But in order to be a yes person, you need to have enough carefully-managed virtual infrastructure on hand.
As you may know, VMware recently began the process of acquiring B-hive, but you may not know much about what B-hive does. From the press release, B-hive “gives infrastructure groups visibility into application performance in virtual environments such as end-user transaction response time, virtual machine utilization and cross-virtual machine dependencies.”
This is a bit cheesy, but outlines some of the benefits of deploying ESX, Virtual Center and VDI.