Datacenters have been reducing their Power usage effectiveness (PUE) for years now. It has become an important factor, which can generate a lot of good PR. The PUE is defined as being equal to the sum of facility power and IT equipment power divided by IT equipment power. Facility power got most of the attention, but while datacenters have been reducing their PUE from roughly 2-4 to 1.2-1.5, the customers of the datacenters hardly know where to start. Yes, despite all the talk about green IT, few companies with large outsourced IT infrastructures have been able to reduce the energy bill.

The long period without updates on the english part of our site might suggest that we are only focused on our Flemisch activities. Nothing could be further from the truth! At the end of last month we have given a seminar on "hybrid clouds and advanced virtualization" in Karlstad. This event was organised by our Swedish partner Compare, a joint organization of the ICT industry in Sweden. Compare is supported and supports about 100 companies in Sweden and has lot of datacenter expertise.

After four years of research and several publications which were read by up to 3 million people, the results of the sizing server lab has caught a lot of attention internationally. We had and have the pleasure of working with Intel's, Sun's and AMD's server performance team. Currently we are working closely together with VMWare and Microsoft to make sure that our report about virtualization is as accurate as possible.