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Optical storage: an emerging option in long-term digital preservation

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Abstract

Long-term digital preservation is an important issue in data storage area. For years, magnetic media based solutions, such as tape and hard disk drive (HDD) based archive systems, monopolize the data archiving market due to their high capacity and low cost. However, in the era of big data, rapidly increasing volume, velocity, and variety of data set bring numerous challenges to the archive systems in various aspects, such as capacity, cost, performance, reliability, power consumption, and so on. In recent years, high capacity optical media, such as bluray discs (BDs) and holographic discs, emerge with the revival of optical storage. Due to the natural simple construction of the optical media, the archive systems based on those optical media, e.g., BD library, demonstrate attractive properties, such as cost per bit, reliability, power consumption, and so on, thus become feasible options in long-term digital preservation. In this paper, we reviewed and compared both the magnetic and optical media based solutions for long-term digital preservation, followed by a summarization on techniques to improve the optical media based archive system.

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Author information

Authors and Affiliations

  1. Wuhan National Laboratory for Optoelectronics, Wuhan, 430074, China

    Shenggang Wan, Qiang Cao & Changsheng Xie

  2. School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China

    Shenggang Wan & Changsheng Xie

Authors
  1. Shenggang Wan
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  2. Qiang Cao
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  3. Changsheng Xie
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Corresponding author

Correspondence to Changsheng Xie.

Additional information

Shenggang Wan received his Ph.D. and B.S. degrees in computer science and technology in 2010 and 2003, M.S. degree in software engineering in 2005, all from Huazhong University of Science and Technology (HUST), China. He is currently an assistant professor in the School of Computer Science and Technology at HUST. His research interests include dependable storage systems and coding theory.

Qiang Cao received his Ph.D. degree in computer architecture, M.S. degree in computer technology in 2003 and 2000, and B.S. degree in applied physics in 1997. He is currently a professor at Huazhong University of Science and Technology. His research interests include computer architecture, large scale storage systems and performance evaluation on computer systems. He is a senior member of China Computer Federation (CCF) and a member of the Institute of Electrical and Electronics Engineers (IEEE).

Changsheng Xie received his B.S. and M. S. degrees in computer science both from Huazhong University of Science and Technology (HUST), in 1982 and 1988, respectively. He is currently a professor in the Department of Computer Engineering at HUST. He is the deputy director of the Wuhan National Laboratory for Optoelectronics. His research interests include computer architecture, disk I/O system, networked data storage system and digital media technology. He is the vice chair of the expert committee of Storage Networking Industry Association (SNIA), China.

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Wan, S., Cao, Q. & Xie, C. Optical storage: an emerging option in long-term digital preservation. Front. Optoelectron. 7, 486–492 (2014). https://doi.org/10.1007/s12200-014-0442-2

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  • DOI: https://doi.org/10.1007/s12200-014-0442-2

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