A Data-Aware Energy-Saving Storage Management Strategy for On-Site Astronomical Observation at Dome A

  • Xiaoxiao Lu
  • Chao SunEmail author
  • Ce YuEmail author
  • Jizhou Sun
  • Ming Che
  • Zijun Xia
  • Zhaohui Shang
  • Yi Hu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11335)


The high energy consumption of storage system has always been a thorny issue especially when power supply is limited, e.g. the case of astronomical observation at Dome A in the Antarctic. Many general-purpose energy-efficient strategies are designed to be applied in common data centers, which is still quite different from disk array at Dome A where extreme restrictions would influence the effect of solutions. Besides, maintaining the reliability is as important as saving energy because most of the time, nobody is there to solve the disk failure problem. In this paper we propose a data-aware energy-saving storage management strategy, named DAES, for astronomical observation whose purpose is to reduce the energy consumed while mitigating the loss of the reliability of disks. A metric named hit index is designed for each disk from the perspective of astronomy to manage the power state of disks more accurately. A customized file scheduler is also drafted to improve data layout dynamically. Simulation experiments show that it reduces energy consumption by up to 56.6% and cuts down the switches of power state by up to 66.8% compared with common energy-saving strategies.


Astronomical observation data Disk array Disk reliability Energy efficient Storage system 



This work is supported by the National Natural Science Foundation of China (11573019, 61602336), the Joint Research Fund in Astronomy (U1531111) under cooperative agreement between the National Natural Science Foundation of China (NSFC) and Chinese Academy of Sciences (CAS).


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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.School of Computer Science and TechnologyTianjin UniversityTianjinChina
  2. 2.National Supercomputer Center in TianjinTianjinChina
  3. 3.National Astronomical ObservatoriesChinese Academy of SciencesBeijingChina

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