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Extending attributes page: a scheme for enhancing the reliability of storage system metadata

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Abstract

In an object-based storage system, a novel scheme named EAP (extending attributes page) is presented to enhance the metadata reliability of the system by adding the user object file information attributes page for each user object and storing the file-related attributes of each user object in object-based storage devices. The EAP scheme requires no additional hardware equipments compared to a general method which uses backup metadata servers to improve the metadata reliability. Leveraging a Markov chain, this paper compares the metadata reliability of the system using the EAP scheme with that using only metadata servers to offer the file metadata service. Our results demonstrate that the EAP scheme can dramatically enhance the reliability of storage system metadata.

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Authors and Affiliations

  1. MOE Key Lab of Data Storage System, Huazhong University of Science and Technology, Wuhan, 430074, China

    Juan Wang, Dan Feng, Fang Wang & Cheng-tao Lu

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  1. Juan Wang
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  2. Dan Feng
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  3. Fang Wang
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  4. Cheng-tao Lu
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Corresponding author

Correspondence to Juan Wang.

Additional information

Project supported by the National Natural Science Foundation of China (No. 60873028), the National Basic Research Program (973) of China (No. 2004CB318201), the Program for New Century Excellent Talents in University (No. NCET-04-0693), and the Innovational Group Project (No. IRT0725), China

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Wang, J., Feng, D., Wang, F. et al. Extending attributes page: a scheme for enhancing the reliability of storage system metadata. J. Zhejiang Univ. Sci. A 10, 1106–1113 (2009). https://doi.org/10.1631/jzus.A0820485

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  • DOI: https://doi.org/10.1631/jzus.A0820485

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