Green Databases Through Integration of Renewable Energy

Recently, a lot of energy efficient techniques have been developed to reduce the usage of the carbon intensive energy (brown energy) of databases. There is a new opportunity to reduce the brown energy usage: renewable energy (green energy) has been used to at least partially power computer systems. The key challenge of exploiting green energy sources is that they are variable and intermittent. So far, there has been little work on integrating renewable energy into a database system. This paper attempts to bridge this gap with ReinDB (Renewable Energy Integrated Database). The design goal of ReinDB is to minimize the brown energy consumption on a database server with both green and brown energy supplies. Specifically, we develop the green supply driven execution paradigm and adaptive power management techniques to adapt to green energy supply. We further propose green aware optimizations to improve the efficiency of both brown and green energy usage. Preliminary results demonstrate the effectiveness of ReinDB in reducing the brown energy usage.