The IT Zombie Apocalypse is Here!
![Zombie outbreak sign (for an article about Zombie servers)](http://assimilationsystems.com/wp-content/uploads/2015/07/bigstock-Poster-Zombie-Outbreak-Sign-b-60161672-760x587.jpg)
Although this article and title are a bit tongue-in-cheek, the reality behind the title is serious. In the average data center, 30% of their servers are mainly space heaters [they had their brains eaten ;-)]. Given that many data centers are strictly limited on power, cooling and floor space, and that power and maintenance are significant costs, this is a big deal. This happens primarily because the staff managing those servers have don’t have a clear idea of what all their servers are doing.