In 2015, Jon Taylor of the Anthesis Group in partnership with Jonathan Koomey Research Fellow at Stanford University, published a report revealing that 30 % of enterprise servers in the five facility, 4000 server sample were comatose, performing no useful computing over a 6 month period in 2014.
In this follow-up analysis, they assess the percentage of comatose (also known as zombie) servers from a sample taken in 2015 that covered about four times as many servers and twice as many facilities as were included in our original report, using a consistent methodology and data from TSO Logic.
Download a copy of the report here: Zombie / Comatose Servers Redux, April 2017
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