• Hypervisor contains the Virtual Machine Monitor (VMM)
• Guest OS unchanged, Host can be any kind of hardware
• Guest uses generic device drivers

Hardware Virtualization (a.k.a. Hardware Assisted)

• VMM moved to hardware
• Requires VT hardware
• Guest OS unchanged, uses generic device drivers

Paravirtualization

• Guest OS requires paravirtualized drivers
• Thin layer for hypervisor, guest has access to Host hardware
• Host any kind of hardware

in gernal we have two famous methods of Virtualizaiton : Hosted Virtualization ( installing the virtualization software VMM on a host server ie. Windows Server 2008 or Linux etc. Bare Metal Virtualization ( installing the virtualization software on physical machine directly which gives super performance eg. VMware vSphear) aka Hardware emulation Further we can classify the virtualization in three important categories Storage Virtualization: This is achieved by consolidating all the storage in a single location which makes the network admins to easily manage the storage resource. Network Virtualization This is accomplished by combining all the network bandwidth and then splitting it into channels for users. this allows the Administrator allow resources as and when they require. This allows each user to access all of the network resources, which can be files and folders on the computer, printers or hard drives etc. This streamlined approach makes the life of the network administrator much easier. Server Virtualization This is the most popular virtualization method used today to consolidate multiple virtual machines on a single high spec physical server, This will save processing power , space in DC and more importantly cost.

1.  Virtualization of old physical servers to a virtual server  also known as P2V (Physical to Virtual)
2. Setup new servers only on virtual infrastructure (unless there is a mandatory requirement of having a physical server )

Although there are a lot of products available in the market to achieve this the ones that are hugely popular is VMware and Hyper –V. both of the software does the job although there is always a big debate on which is better one. I have always been a big supporter of VMware products, with their new range of products complementing one and other. I will dig these two deeper on my next post … Thanks for reading.

Sources : VMware: https://www.vmware.com/files/pdf/VMware_paravirtualization.pdf

Dell: https://www.dell.com/downloads/global/power/ps3q05-20050191-Abels.pdf

Microsoft: https://www.microsoft.com/en-us/server-cloud/hyper-v-server/benefits.aspx]]>

1. Open VCenter  and select Convert Mechine

VCenter

 2. Specify Source: On the new screen you we will need to select source which will be the system you want to virtulize.

Specify Source

3. Specify Destination: On this screen you will need to specify the destination and destination type i.e. if you want the virtual machine to be a workstation or a vmware Infrastructure guest machine.

Specify Destination

View and Edit VMware

6.Networks: this section is to choose how you want the vm to connect to the network.

We have 3 options: •Bridge that allows you to connect directly to the physical network. •NAT (Network Address Translation) Used to share the host IP address. (recommended) •Host-only that setup a private network share with the host machine. 

 7.Services: always make sure you disable all the services which are specific to the hardware as you will not need them once the system is virtualized. an example is Apple Mobile device for iPhone.

8.  Ready to Complete: Summery of all the selections you have made just go through it to be sure that you have selection is correct. If you wish to change something you can still hit on the back button and get it changed.

Physical to Virtual Conversion by VmWare Vcenter

   After the P2V is completed, I used the VM ware Player to open the .vmdk file this understands that it’s a virtual machine and starts the system. Just by chose the option that says open an existing VM machine. And browse to the .vmdx file, you should be ready to play the vm.

I haven’t had a chance to write a new post in a while because I’ve been busy working at Orange. I am mostly involved in managing and maintaining Microsoft Windows 2k and 2k3, however we still have some of the legacy WinNT 4.0 nightmares every now and then. I have been working on HP Open View Operations version 8 involving some auditing on our servers.

I have finally become Expert in configuration of iLo Management Boards for the HP Bladservers also have had training by HP for HP BladeSystem Administrator

I am also quite keen on learning to use the magic of BladeLogic, ( running jobs for package deployments)

Apart from that I’ve been playing with VM Ware ESX server and also the VM Ware Infrastructure 2.0 managing quite a lot Virtual Machines, should admit Virtualization is really good fun. I am looking forward for training on VM Ware which will give me an insight how this technology mingles with the physical hardware.

In my spare time I have started working on Linux Administration, I have recently build a CentOS Server which is the exact binary of the Red Hat Enterprise Linux. Not to forget that this is a free distribution unlike RHEL, the good thing about this Linux version is this is quite robust unlike Fedora family.

My next experiment on another famous brand of Unix system called FreeBSD, Although it took me considerable amount of time to figure out the terminology of the Operation system itself.

Yes how can I forget to mention!  just creating a simple user is also a nightmare on this Unix flavor. Thus I have decided that I will be loyal to Mr Red Hat. J

In addition to this, I have few trainings lined up which I am looking forward for.

Microsoft Windows 2003, February 23 -27, London, UK

Microsoft Windows Server 2008, March 17- 20, Bristol, UK

Virtualization VM Ware, April, Reading, UK

Finally before I my end my blog today some updates on my personal,  I recently got engaged on 26 Jan, yeh that’s right India’s Republic  day.

More update on my wedding which is not too far will be coming soon. …

If you wish to contact me or have any comments feel free.

Today I am doing a research on mobile Phones, as I am going to upgrade my mobile very soon, hay that’s an advantage working in a Mobile company, you get to upgrade to the top of the range phone for free! not really.

 In all honesty I should say every one at work was looking for the new handset to upgrade as our CEO (Tom Alexander) promised to give all Orange employees new handsets.

I am specifically interested in the smart phones, one of the most popular smart device is the Blackberry, in case you don’t know who makes them, its Research In Motion, also known as RIM.

Blackberry Mobile phones are very common today because they support push email technology, mobile telephone, text messaging, Internet faxing, web browsing

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 If you’re a person who needs access to his important email, on the move, then its the right choice.

As blackberry can give you the access to your emails, prity much any place, example in your home, office, or even if your just stuck in the traffic congestion, you can access your important mail email where every you get a network coverage.

 Another unique feature of Blackberry is all the data sent or received by the device is in a compressed format which is decompressed and then shown to the user, so this feature not only saves you time of download but also saves you decent amount of money, anyway  for me my Boss  pays the bills so lets not bother about it.

But the phone which stuck my eye is the HTC Diamond, I am not a big fan of HTC mobiles, as they use to be so big, I remember my work mates started bugging me, asking me if I got my brick today, well all I wanted to tell is it was too big to be called a Mobile phone, you can call it a phone but in all honestly it was no near to Mobile.

well things has changed now as the Touch Diamond is the lates device from HTC which not only looks good but works swiftly even though it has the MS Windows Mobile O/S. well that’s really amazing isn’t it ?

HTC have not only managed to give the device  sleek look but have packed it up with really amazing features,

to start with as its running windows Mobile it has a good user friendly interface,  runs windows mobile 6.1 which makes it more robust. As it has 4 Gb internal memory, lest hope that it does not freeze due to lack of memory, it comes with 3.15 MP camera, a GPS receiver and also support push email technology. and off course has all the features of PDA/ Organizer.

OK  so the bottom line is this is prity much a computer!

yes but with a missing mice isn’t it ?

Ok now you guys would be thinking why  don’t I talk about the I Phone. just to remind you that Orange do not sell the I Phone in the UK, what a shame!

Ok, just before you go don’t forget to have a look the you tube video demo of the black beauty Diamond, hope you enjoyed reading as much as I enjoyed writing this article.

well guys its time to go to bed now good bye and sleep tight.

[youtube=https://www.youtube.com/watch?v=CoaXA9un7YE&eurl=https://mtag.wordpress.com/2008/05/11/htc-touch-diamond-hands-on/]

(if you want to have know more about htc touch diamond you can logon to www.htc.com )

(if you want to have know more about blackberry you can logon to www.blackberry.com )

before i go let me tell you some thing all my colleague are intrested only in the new  HTC touch diamond, so do not want to be left behind.

well if you guys have any suggestions or comments please feel free to use the box below ‘Submit Comment’.