Fault tolerance of a holographic storage system

Takahiro Watanabe, Minoru Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Demand is increasing daily for large storage systems that are useful for devices operating under a radiation-rich space environment, such as spacecraft, space satellites, and space robots. A holographic storage system, which can easily provide large storage capacity, is a candidate for space embedded systems. The holographic storage system, which requires no rotation mechanism, usually consists of a holographic memory material, a laser array, and a photodiode array. Although a holographic memory itself is an extremely robust device for use in a space radiation environment, its associated components are vulnerable to radiation. Such vulnerable devices can cause severe problems by preventing the reading of all holographic memory contents. This is a turn-off failure mode of a laser array. This paper therefore presents a recovery method for a turn-off failure mode of a laser array on a holographic storage system and presents results of its demonstration.

Original languageEnglish
Title of host publicationISCIT 2010 - 2010 10th International Symposium on Communications and Information Technologies
Pages1126-1130
Number of pages5
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 10th International Symposium on Communications and Information Technologies, ISCIT 2010 - Tokyo, Japan
Duration: Oct 26 2010Oct 29 2010

Publication series

NameISCIT 2010 - 2010 10th International Symposium on Communications and Information Technologies

Conference

Conference2010 10th International Symposium on Communications and Information Technologies, ISCIT 2010
Country/TerritoryJapan
CityTokyo
Period10/26/1010/29/10

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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