We are building a solar-powered micro-datacenter called Parasol. It comprises a small container, a set of solar panels, and batteries. The container lies on a steel structure placed on the roof of our building. The solar panels are mounted on top of the steel structure and shade the container from the sun. The container hosts two racks of energy-efficient servers (up to 160 of them) and networking equipment. The container uses free cooling whenever possible, and direct-exchange air conditioning otherwise.
Besides the solar panels, Parasol can draw energy from its batteries and/or the electrical grid. Three manual switches enable different configurations for the supply of energy. For example, we can configure Parasol to operate completely off the electrical grid. Parasol also includes extensive power monitoring infrastructure to quantify how much energy is drawn from each available source.
We are also building software for maximizing the use of green energy in Parasol. Our two first systems, GreenSlot and GreenHadoop, have been described in the literature. Both systems assume that there are no batteries and that brown energy should only be consumed when green energy is not available. We are currently working on GreenNebula, our extension of the OpenNebula cloud manager. GreenNebula will be aware of the green energy available at the datacenter. In addition, it will maximize the green energy use by migrating virtual machines across green datacenters. Finally, it will enable us to share Parasol with researchers from other institutions.
...really under construction.
- Parasol and GreenSwitch: Managing Datacenters Powered by Renewable Energy (ASPLOS 2013)
Íñigo Goiri, William Katsak, Kien Le, Thu D. Nguyen, and Ricardo Bianchini
- Leveraging Renewable Energy in Data Centers: Present and Future (Keynote address at HPDC 2012)
- Parasol: A Solar-Powered µDatacenter (Best poster award at EuroSys 2012)
Ricardo Bianchini, Íñigo Goiri, Kien Le, and Thu D. Nguyen
- GreenHadoop: Leveraging Green Energy in Data-Processing Frameworks (EuroSys 2012)
Íñigo Goiri, Kien Le, Thu D. Nguyen, Jordi Guitart, Jordi Torres, and Ricardo Bianchini
- GreenSlot: Scheduling Energy Consumption in Green Datacenters (SC 2011) [Slides (PDF)]
Íñigo Goiri, Kien Le, Md. E. Haque, Ryan Beauchea, Thu D. Nguyen, Jordi Guitart, Jordi Torres, and Ricardo Bianchini
- Capping the Brown Energy Consumption of Internet Services at Low Cost (IGCC 2010, Best paper award) [Slides]
Kien Le, Ozlem Bilgir, Ricardo Bianchini, Margaret Martonosi, and Thu D. Nguyen
- Cost- and Energy-Aware Load Distribution Across Data Centers (HotPower 2009) [Slides]
Kien Le, Ricardo Bianchini, Margaret Martonosi, and Thu D. Nguyen
SoftwareSome of the software (including GreenSlot and GreenHadoop) we wrote can be found here.
- Ricardo Bianchini
- Josep L. Berral
- Íñigo Goiri
- Md. E. Haque
- William Katsak
- Kien Trung Le
- Thu D. Nguyen