磁盘存储系统节能技术研究综述

目前磁盘是构成存储系统的重要组成部分,在存储系统总能耗中磁盘能耗占了大部分.因此磁盘存储系统的高能耗问题受到越来越多研究人员的关注.综述了磁盘存储系统从磁盘到存储系统各个层次的能耗研究进展和现状,同时对各种典型节能方法从原理、实现机制和评测手段等诸方面进行了分析和讨论,并对比分析和总结了各种节能技术的适应环境.结合海量存储系统负载特征的复杂性和应用环境的复杂性等特点,指出了磁盘存储系统节能技术的未来研究方向.

Survey on Power-saving Technologies for Disk-based Storage Systems

Hard disk drives have been one of important components of modern-day storage systems, and their power consumption is the major part of total power consumption of storage systems. I}herefore, the problems of high power dissipation of disk-based storage systems are paid much more attentions by researchers. The research progress and sta- tus on power consumption issues from disk to storage system were extensively studied in this paper. Then representative power-saving technologies, implementation mechanisms as well as evaluation methodologies were presented and discussed in details. Further, their respective characteristics and applicability were also analyzed and summarized. I3y taking workload characteristics of mass storage systems and complexity of application scenarios into consideration, the future work on power-saving technologies for disk-based storage systems was pointed out finally.