CoolAir: Temperature- and variation-aware management for free-cooled datacenters

Íñigo Goiri, Thu D. Nguyen, Ricardo Bianchini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

Despite its benefits, free cooling may expose servers to high absolute temperatures, wide temperature variations, and high humidity when datacenters are sited at certain locations. Prior research (in non-free-cooled datacenters) has shown that high temperatures and/or wide temporal temperature variations can harm hardware reliability. In this paper, we identify the runtime management strategies required to limit absolute temperatures, temperature variations, humidity, and cooling energy in free-cooled datacenters. As the basis for our study, we propose CoolAir, a system that embodies these strategies. Using CoolAir and a real free-cooled datacenter prototype, we show that effective management requires cooling infrastructures that can act smoothly. In addition, we show that CoolAir can tightly manage temperature and significantly reduce temperature variation, often at a lower cooling cost than existing free-cooled datacenters. Perhaps most importantly, based on our results, we derive several principles and lessons that should guide the design of management systems for free-cooled datacenters of any size.

Original languageEnglish (US)
Title of host publicationASPLOS 2015 - 20th International Conference on Architectural Support for Programming Languages and Operating Systems
PublisherAssociation for Computing Machinery
Pages253-265
Number of pages13
ISBN (Electronic)9781450328357
DOIs
StatePublished - Mar 14 2015
Externally publishedYes
Event20th International Conference on Architectural Support for Programming Languages and Operating Systems, ASPLOS 2015 - Istanbul, Turkey
Duration: Mar 14 2015Mar 18 2015

Publication series

NameInternational Conference on Architectural Support for Programming Languages and Operating Systems - ASPLOS
Volume2015-January

Other

Other20th International Conference on Architectural Support for Programming Languages and Operating Systems, ASPLOS 2015
Country/TerritoryTurkey
CityIstanbul
Period3/14/153/18/15

All Science Journal Classification (ASJC) codes

  • Software
  • Information Systems
  • Hardware and Architecture

Keywords

  • Datacenters
  • Energy management
  • Free cooling
  • Thermal management

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