The good folks over at CloudPhysics have put together a pretty sharp Halloween-themed infographic that contains data from their wide range of environmental data. I found the information to be both useful and interesting, covering nifty topics like Heartbleed vulnerability levels, how bully virtual machines affect sibling workloads, and the use of end-of-life operating systems within virtual machines. One statistic that stuck out for me – over 6.2% of ESXi hosts are still on version 4.x which I called out as being no longer supported in an earlier post.
Worth a look, especially since there is a free community edition that you can deploy into your home, lab, or work environment to get your feet wet and find those data center ghosts. 🙂