Whether you would like to use virtualization on your desktop PC or on a server farm, you must choose a virtualization product. The two most popular virtualization products are EMC’s VMware and Microsoft’s Virtual PC/Server. So how do you choose the right product for your needs? Let’s find out…
Understanding Your Needs
No matter what your needs, it is very likely that either VMware or Virtual PC/Server can do the job. In my opinion, the key to choosing the right product is understanding your needs. What is it that you want to do with virtualization? Do you want to have a test network on your desktop PC? Do you want to do software development? What features are needed? How many servers will you run concurrently? How much RAM is required? What operating systems will be run in the virtual systems? The answers to these questions will help you choose the right class of virtualization product.
Choosing the Class of Virtualization Product
Once you take a look at your needs, you will be able to better choose the class of virtualization product you need. For example, if you just want to run a test Windows 2003 server and Windows XP workstation, on their own private network, on your local desktop PC, then you should choose a desktop virtualization product. Examples of these are VMware Workstation and MS Virtual PC. Both of those applications are designed to be run on a local desktop.
On the other hand, if you need to run 5 concurrent production servers that required at least 1GB of RAM each, you are no longer talking about a desktop product. You require an enterprise virtualization server product. Not only because of the amount of RAM required but because we said that we would run “production servers”. You don’t want to run production servers on desktop virtualization products.
Choosing Between VMware and Virtual PC
Let’s say that you want to setup a basic server & workstation isolated network and run it on your local desktop PC. You know that you can choose between VMware workstation and MS Virtual PC. So how do you make that choice? Let’s compare these two competing applications. Below, I will list out pro’s and con’s of each of these applications. As always, with pros and cons, some of them can be debated.
VMware Workstation 5.5
- VMware came out with their virtualization product in 1999, 4+ years before Microsoft. Because of this, VMware is a mature product. Microsoft actually bought their product (called Connectix) and made it run on Intel systems.
- VMware is more “feature rich”, in general.
- VMware’s virtualization product line has more depth that Microsoft’s. VMware offers products like ACE, VirtualCenter, and ESX server.
- While both support Linux with Linux Tools/Additions, support for Linux distributions in VMware is stronger. Also, VMware offers help information for over 50 different OS distributions.
- Performance benchmarks for VMware, when running Windows XP, give it higher marks than Virtual PC. In my experience, VMware workstation does perform better.
- Snapshot manager offers ability to freeze systems in time, keep track of these different system images, and move forward and back between them. You can even branch off system snapshots and create new snapshots.
- VMware Team features allow you to group virtual systems together and start/stop them all at the same time.
- Ability to import Virtual PC machine.
- Ability to create AVI videos of tasks performed inside virtual machines
- Support for 64 bit Guest Operating systems if you have a 64 bit processor
- Supports dual processors on virtual machines
- Supports USB devices
- VMware Workstation costs $189 whereas Virtual PC is free
MS Virtual PC (2004 SP1)
- Much lower cost – Virtual PC 2007 is free whereas VMware Workstation costs $189 if you download it.
- Simple and easy to use – limited interface and features
- Can transport virtual machines from Virtual PC to Virtual Server
- Support Sound on virtual machines.
- Less documentation is available for Virtual PC.
- Overly streamlined design hides additional features or more complex configuration.
- Performance benchmarks for Virtual PC, when running Windows XP, give it lower marks than VMware.
- No USB support beyond keyboards and mice.
- Many other advanced features offered by VMware Workstation are missing (like snapshot manager)
Both VMware and Microsoft offer their server products for FREE (see VMware Beta and Virtual Server). However, using the server class products on your desktop system may not be the best choice. The server class products are designed to run production servers. Workstation class products have more user-friendly features, with the desktop user in mind. This goes back to knowing your requirements.
In summary, prior to choosing a virtualization product, you should first consider your needs. Ask yourself what you will be using the product for. Once you understand your needs, you can move on to choosing between vendors. Best of all, you don’t have to make that choice just from this list, you can try out the products yourself. One thing that I am sure of, once you begin using virtualization you will wonder how you ever did without it.
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