U.S. Department of Energy Best Practices Workshop onFile Systems & Archives San Francisco, CA September 26-27, 2011 Position Paper

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This position paper discusses issues of usability of the large parallel file systems in the Livermore Computing Center. The primary uses of these file systems are for storage and access of data that is created during the course of a simulation running on an LC system. The Livermore Computing Center has multiple, globally mounted parallel file systems in each of its computing environments. The single biggest issue of file system usability that we have encountered through the years is to maintain continuous file system responsiveness. Given the back end storage hardware that our file systems are provisioned with, it is ... continued below

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Hedges, R M September 1, 2011.

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This position paper discusses issues of usability of the large parallel file systems in the Livermore Computing Center. The primary uses of these file systems are for storage and access of data that is created during the course of a simulation running on an LC system. The Livermore Computing Center has multiple, globally mounted parallel file systems in each of its computing environments. The single biggest issue of file system usability that we have encountered through the years is to maintain continuous file system responsiveness. Given the back end storage hardware that our file systems are provisioned with, it is easily possible for a particularly I/O intensive application or one with particularly inefficiently coded I/O operations to bring the file system to an apparent halt. The practice that we will be addressing is one of having an ability to indentify, diagnose, analyze and optimize the I/O quickly and effectively.

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PDF-file: 4 pages; size: 0.8 Mbytes

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  • Presented at: U.S. Department of Energy Best Practices Workshop on File Systems & Archives, San Francisco, CA, United States, Sep 26 - Sep 27, 2011

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  • Report No.: LLNL-CONF-497517
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 1027979
  • Archival Resource Key: ark:/67531/metadc833989

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  • September 1, 2011

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 2, 2016, 4:30 p.m.

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Hedges, R M. U.S. Department of Energy Best Practices Workshop onFile Systems & Archives San Francisco, CA September 26-27, 2011 Position Paper, article, September 1, 2011; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc833989/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.