Research of the file system of volume holographic storage based on virtual storage layer

Fei Wu; Faling Yi; Changsheng Xie

doi:10.1117/12.762001

25 January 2008 Research of the file system of volume holographic storage based on virtual storage layer

Fei Wu, Faling Yi, Changsheng Xie

Proceedings Volume 6912, Practical Holography XXII: Materials and Applications; 69120G (2008) https://doi.org/10.1117/12.762001
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

Volume holographic storage (VHS) is currently the subject of widespread interest as a fast-readout-rate, high-capacity digital data-storage technology. To make need of characteristics of the VHS, the paper present the file system using a virtual storage layer (VSL) which can be compatible with the logic layer of the current used file system and accommodate the requirement of VHS in the physical layer. The VSL which is made of the super block, directory area, the metadata area and dynamic file area can connect directly to the storage media one side and implement compatible to the existing file system by providing the operating interfaces for the above logical file system. We produce the two layer storage structure which effectively reduces the number of disk accessed and improves the speed of file read and write. The allocation mode of 'hybrid of block and zone' and allocation strategy of 'block priority' greatly improve the space utilization rate of storage device and enforce the storage adaptability in VHS.

Citation Download Citation

Fei Wu, Faling Yi, and Changsheng Xie "Research of the file system of volume holographic storage based on virtual storage layer", Proc. SPIE 6912, Practical Holography XXII: Materials and Applications, 69120G (25 January 2008); https://doi.org/10.1117/12.762001

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