Feeds

Virtualisation for Beginners

It's not just for server jockeys, you know

  • alert
  • submit to reddit

The Power of One Brief: Top reasons to choose HP BladeSystem

Both VMware and Parallels also allow you run the whole guest operating system either as a single entity in its own window, or full screen, which makes it look as if it owns the entire machine. In conjunction with the Mac OS X Spaces feature - a way of flicking immediately between virtual desktops with the touch of a key combination or a mouse gesture - this is a great way to switch almost instantly between multiple operating systems.

Virtualisation for Beginners

YouTube HD running smoothly on Windows 7 in a VirtualBox VM under Ubuntu Linux

One other side benefit of virtualisation should appeal to anyone who runs lengthy processes on their machine. It seems to happen all too often that you're re-encoding a movie as a background process, when you need to reboot your machine, to install a system update, say, or fix a hardware problem. If the conversion is running on the host operating system you'll either have to wait until it's finished, or stop it and start all over again from scratch. But if it's running in a virtual machine, you just suspend the virtual machine and then reboot the host or whatever else you have to do. When you restart the virtual machine, the compilation will pick up from exactly where you left it.

With a sufficiently powerful processor, running multiple guest operating systems becomes feasible. Virtualisation has a performance impact, of course - if you're thinking of using it for gaming, for instance, dream on - but for office and straight graphics work my Intel Core 2 Quad easily runs Ubuntu Linux, Windows 7 and Windows XP in separate VMs under Snow Leopard. ®

VirtualBox

Sun's VirtualBox is a free virtualisation utility available for Windows, Mac OS X and Linux. It lacks some of the finer features of VMWare and Parallels, but otherwise does an excellent job.

VirtualBox on Linux depends on modules that need to be compiled especially for the particular kernel in use. But if you're using one of the current common Linux distributions you should be able to find your distribution-specific package here.

The Essential Guide to IT Transformation

More from The Register

next story
Secure microkernel that uses maths to be 'bug free' goes open source
Hacker-repelling, drone-protecting code will soon be yours to tweak as you see fit
KDE releases ice-cream coloured Plasma 5 just in time for summer
Melty but refreshing - popular rival to Mint's Cinnamon's still a work in progress
NO MORE ALL CAPS and other pleasures of Visual Studio 14
Unpicking a packed preview that breaks down ASP.NET
Cheer up, Nokia fans. It can start making mobes again in 18 months
The real winner of the Nokia sale is *drumroll* ... Nokia
Put down that Oracle database patch: It could cost $23,000 per CPU
On-by-default INMEMORY tech a boon for developers ... as long as they can afford it
Another day, another Firefox: Version 31 is upon us ALREADY
Web devs, Mozilla really wants you to like this one
Google shows off new Chrome OS look
Athena springs full-grown from Chromium project's head
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Securing Web Applications Made Simple and Scalable
Learn how automated security testing can provide a simple and scalable way to protect your web applications.