A great Essay written by Tomas Jon Pfister covering some of the factors involved when switching between webhosting operating systems.
Some of the categories covered include :
a) labour costs: possible changes in time required for maintenance as a result of more/less stable software, complexer/simpler systems, ease/difficulty of administration, more/less documentation, better/worse commercial or free support, and more/less freedom to modify the software according to the needs of the company;
b) licence fees: more/less licence fees required not only for the operating system, but other
commercial software necessary to satisfy the customers’ diversified software support needs;
c) life span of the servers and software: constant need of expensive, time-consuming upgrades of
both hardware and software in order to keep the systems secure and the quality of service high;
d) customer happiness: does the use of a specific operating system enhance the quality of service,
including uptime and usability.
Entire Essay (PDF )
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50-Monitor Display
Here are some images of the new 50-monitor display
prototype that was developed at the Gigapixel Lab at Virginia Tech.
Since I graduated, I won’t be able to play with it, but I wanted to
keep everyone updated with the work going on there. The display is
comprised of 21″ touch-screen monitors (thats why they are shiney)
and–like the previous display–is driven by a cluster. This time (to
save space) we are using 25 shuttle PCs as can be seen in the images
below. The whole setup has a resolution of at least 12800×5120
(65,536,000 pixels). Since I’m not around anymore, I’m not sure if
we’ll get any gaming up and running on this monster, but I’ll see what
I can do. As usual, you can reach me at plastk@vt.edu if you have any
questions or comments. Enjoy the images!
50-monitor setup running at a resolution of 12800×5120.
More on 50-monitor 12800×5120 display developed at Virginia Tech Gigapixel Lab
/etc/init.d/named restart
service named restart
…is an easier way of doing the same thing.
Restarting a service in linux
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Very good article on how to build a six-headed, six-user Linux system from the ground up.
read more | digg story
