A long time ago in the mid-1990s, Ken Brill, Jedi Knight, brilliantly created the concept of a “tier system of availability” based primarily on the redundancy level of the facility power and cooling infrastructure, and subsequently founded the Uptime Institute (UI).
In my last column I discussed the net zero energy data center. While to some it may seem like an oxymoron or a punch line to a joke, however to one degree or another, it may become a necessity in the not too distant future. Nonetheless, today energy efficiency, as well as the energy usage by all data centers, continues to be an ongoing and high-profile target for environmental and sustainability groups, as well as the government.
In my last column I discussed the proposed ASHRAE 90.4 Data Center Energy Efficiency standard. At the time the article published, the second revision for comment (September 2015) mandated a PUE ranging from 1.3 to 1.6, dependent on its location in the 18 geographic zones.
This is not just another article about power usage effectiveness (PUE) and how to measure or improve it. Just when you thought you were a responsible, efficiency conscious data center manager and were comfortable with your data center’s PUE, ASHRAE’s proposed new 90.4 standard may be about to move your cheese. Are you prepared to prove your power usage effectiveness (PUE)of your facility to the local building inspector?
Read this month's featured stories: Limited space and higher power requirements need a high-capacity UPS; Consider rental options for a workable Plan B; TierPoint’s Spokane, WA, facility uses a natural aquifer as part of its geothermal cooling system, and more.