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data center benchmarking (German):

Green IT BB - German knowledge platform about green IT

my own thoughts about green IT:

IT infrastructures in Europe consumed 2% of the European energy demand – That is as much, as the aviation industry consumed. For me that is a reason to not only think about reducing energy consumption but really change IT infrastructures, so that it consumes fewer energy in future. The actual sales perspective of virtualization vendors and IT service providers make that a real challenge – In the last year I’ve worked on a project that was that oversized, that the electrician had to add new power supplies for running the new virtualization platform :(

So the question is not what products we use for greening our IT infrastructures – It is more a question of concepts and teaching! Although working with measurements is highly recommended, it is not a good idea to reduce the environmental effects of your IT infrastructure with the help of PUE or DCIE only. Because with this you calculate how much energy your data center wastes with non-computational work (UPS and Cooling). Todays virtualization technologies (server, storage and desktops) allow to raise the efficiency of the running systems by raising the load. Raising the load without loosing failover capacity is the core of every green IT concept…

Besides the optimizations in the data center you shouldn’t forget you desktops which make 55% of the IT energy consumption in average. Here you should determine the real need of your users and try to centralize applications, so that you gain the ability of shifting energy consumption from desktops to the server. On the first view that sounds wrong because a server has to be cooled and is running 24/7 but if you think of a consolidation rate of 100 users / server and the reduction of energy consumption of about 50 Watts per user…

If you like discussing various sides of green IT infrastructures, feel free to comment on this page!

1 comment

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