Saturday 30 May 2009

Working with Virtual Box

My goal is not to run a virtual desktop in my PC. I do that but not for the jobs I counted in previous post. Virtualization has found its applications mostly in corporate computing from the time that Novell introduced its workstation software for Microsoft server software to be installed in place of Windows 2000 workstation. One good usage of virtual boxes is to test beta and candidate software. For example, now I am doing it with Microsoft's future operating system Windows 7 RC with 30Gb of virtual hard disk. I can have it free for more than a year with VIP services of volunteer users. It is not advisable to install a not very stable operating system on a hard disk that contains side by side the missus's emails and social networking and her daily software, except that you like to sleep on the couch with the pooch. (Well, they don't rhyme.) Ergo, you put it safely on the virtual box and if it doesn't behave you simply drop everything in the recycle bin and start anew. Anyway, I was talking about my GParted virtual experiments. I do them with virtual hard disk and when I become confident that I have done everything correctly and all necessary details have been put on the paper and the risk of doing them on a roaring and working hard disk with valuable assets are almost nil then I transfer my experience on the live and kicking hard disk. This is the way that modern engineers do their jobs. When You send a box round the Mars and it takes five years for such a project you cannot revise it at its destination. Everything should work as it is drafted on the paper. One should predict unpredictable. One way of achieving that is procuring redundancy, that is, having alternative devices and slack paths in the project. Perhaps people can remember story of Titanic ship sank in 1912. In the design of the vessel, modern finance management for optimization of costs had forced design engineers to show their confidence by reducing the number of lifeboats to the half of the necessary items that should be predicated for saving all crews and passengers in a belief of a never-sinking vessel design. To that reason, why any boat should be provided at all; for fishing day-out of some passengers? Actually, a modern engineer should provide more than enough of lifeboats in redundancy, in case some rich people might avoid being crammed with smelly people in the same lifeboat on a sinking accident. That lesson in terms of computer means, "Always keep a backup for your valuable data!" The other trick of engineers is called "simulation." It means repeating the desired job in a safe environment and finding what is not predicted correctly and what goes wrong. Then eliminating those obstacles and moving to the harsher level of simulation such that their design can safely pass the worst case scenarios. My virtual box helps me to simulate things in a safe environment without harming valuable assets of others.

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