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Energy proportionality for disk storage using replication (2010)
| Citations: | 2 - 0 self |
BibTeX
@TECHREPORT{Kim10energyproportionality,
author = {Jinoh Kim and Doron Rotem},
title = {Energy proportionality for disk storage using replication},
institution = {},
year = {2010}
}
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Abstract
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. Categories andSubject Descriptors C.4 [Performance of Systems]: Reliability, availability, and serviceability
Keyphrases
energy proportionality disk storage energy consumption energy management replication strategy total energy flexible energy management major importance basic function predicted workload minimal response time penalty performance guarantee power state novel approach fractional replication synthetic trace energy requirement storage device large datacenters recent work
