Introduction to parallel algorithms and architectures: array, trees, hypercubes
Introduction to parallel algorithms and architectures: array, trees, hypercubes
A dynamic disk spin-down technique for mobile computing
MobiCom '96 Proceedings of the 2nd annual international conference on Mobile computing and networking
The content and access dynamics of a busy Web site: findings and implications
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Managing energy and server resources in hosting centers
SOSP '01 Proceedings of the eighteenth ACM symposium on Operating systems principles
A survey of design techniques for system-level dynamic power management
Readings in hardware/software co-design
Dynamic Power Management for Nonstationary Service Requests
IEEE Transactions on Computers
DRPM: dynamic speed control for power management in server class disks
Proceedings of the 30th annual international symposium on Computer architecture
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Hibernator: helping disk arrays sleep through the winter
Proceedings of the twentieth ACM symposium on Operating systems principles
eRAID: A Queueing Model Based Energy Saving Policy
MASCOTS '06 Proceedings of the 14th IEEE International Symposium on Modeling, Analysis, and Simulation
Dynamic power management using machine learning
Proceedings of the 2006 IEEE/ACM international conference on Computer-aided design
Energy conservation policies for web servers
USITS'03 Proceedings of the 4th conference on USENIX Symposium on Internet Technologies and Systems - Volume 4
PARAID: A gear-shifting power-aware RAID
ACM Transactions on Storage (TOS)
Optimizing power consumption in large scale storage systems
HOTOS'07 Proceedings of the 11th USENIX workshop on Hot topics in operating systems
SEA: A Striping-Based Energy-Aware Strategy for Data Placement in RAID-Structured Storage Systems
IEEE Transactions on Computers
Write off-loading: Practical power management for enterprise storage
ACM Transactions on Storage (TOS)
Robust and flexible power-proportional storage
Proceedings of the 1st ACM symposium on Cloud computing
On energy management, load balancing and replication
ACM SIGMOD Record
SRCMap: energy proportional storage using dynamic consolidation
FAST'10 Proceedings of the 8th USENIX conference on File and storage technologies
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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Energy saving has become a crucial concern in datacenters as several reports predict that the anticipated energy costs over a three year period will exceed hardware acquisition. In particular, saving energy for storage is of major importance as storage devices (and cooling them off) may contribute over 25 percent of the total energy consumed in a datacenter. Recent work introduced the concept of energy proportionality and argued that it is a more relevant metric than just energy saving as it takes into account the tradeoff between energy consumption and performance. In this paper, we present a novel approach, called FREP (Fractional Replication for Energy Proportionality), for energy management in large datacenters. FREP includes a replication strategy and basic functions to enable flexible energy management. Specifically, our method provides performance guarantees by adaptively controlling the power states of a group of disks based on observed and predicted workloads. Our experiments using a set of real and synthetic traces show that FREP dramatically reduces energy requirements with a minimal response time penalty.