I recently participated in a discussion on LinkedIn about the best, most energy-efficient way to control temperature: either the classic sensor in the return of each individual CRAC/CRAH or supply air either by under-floor sensors or sensors in the cold aisles.
The introduction of 2011 ASHRAE’s TC 9.9 Expanded Thermal Guidelines brought forth a new awareness of being able to successfully operate new IT equipment in the expanded “Allowable” ranges, far beyond the previous 2004 -2008 ASHRAE “Recommended” environmental envelopes.
I just read an article about how airlines are increasingly learning how to balance passenger loads throughout the year, with spring, summer, and fall being busy seasons compared to the winter.
High temperatures make data center managers break out in cold sweats. Even though the thermostat may read a comfortable 76ºF, customers at colocation facilities say, “There must be a problem here, this room is so hot.”
In the upcoming (Jan/Feb) issue of Mission Critical, Chris Crosby tells Andy Lane, "This is obviously a great industry to be in, but think about how many new ideas that have already been done in other industries are being re-created here.
7x24 Exchange is the leading knowledge exchange for those who design, build, operate and maintain mission-critical enterprise information infrastructures, 7x24 Exchange’s goal is to improve end-to-end reliability by promoting dialogue among these groups.
“2011 Thermal Guidelines for Liquid Cooled Data Processing Environments” can be downloaded for free from the ASHRAE TC9.9 website at www.tc99.ashraetcs.org.