While researching some electricity and power issues for a data center project, I stumbled over a couple of statistics that may keep me up tonight.
The first deals with efficiency of servers within large organizations. This is from a Forbes article "Servers: Why Thrifty Isn't Nifty." (11 Aug 2008).
"A rule of thumb for organizations with 5000 servers is that 30 percent of them are technologically obsolete - that's 1500 servers that could be unplugged with little or no effect.