June 17, 2006 to June 21, 2006
Parthasarathy Ranganathan , Hewlett Packard
Phil Leech , Hewlett Packard
David Irwin , Duke University
Jeffrey Chase , Duke University
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ISCA.2006.20
One of the key challenges for high-density servers (e.g., blades) is the increased costs in addressing the power and heat density associated with compaction. Prior approaches have mainly focused on reducing the heat generated at the level of an individual server. In contrast, this work proposes power efficiencies at a larger scale by leveraging statistical properties of concurrent resource usage across a collection of systems ("ensemble"). Specifically, we discuss an implementation of this approach at the blade enclosure level to monitor and manage the power across the individual blades in a chassis. Our approach requires low-cost hardware modifications and relatively simple software support. We evaluate our architecture through both prototyping and simulation. For workloads representing 132 servers from nine different enterprise deployments, we show significant power budget reductions at performances comparable to conventional systems.
Parthasarathy Ranganathan, Phil Leech, David Irwin, Jeffrey Chase, "Ensemble-level Power Management for Dense Blade Servers", ISCA, 2006, Proceedings. 33rd International Symposium on Computer Architecture, Proceedings. 33rd International Symposium on Computer Architecture 2006, pp. 66-77, doi:10.1109/ISCA.2006.20