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  1. Lustre Documentation
  2. LUDOC-373

Add information about Lustre xattrs

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    • Improvement
    • Status: Open
    • Trivial
    • Resolution: Unresolved
    • None
    • None
    • 9223372036854775807

    Description

      Hello. The current manual does not seem to contain a introduction to the extended attributes. As Andreas provided a list of xattrs, along with information about each, please add this information to the manual. In considering where would be best, my suggestion would be to add a new section, "1.3.2. Lustre Extended Attributes", just after 1.3.1. Lustre File System and Striping. In doing so, a link could quickly be made between the striping policies of 1.3.1, and the trusted.lov xattr associated with retaining the file/directory striping files. At that point, "all" the xattrs could be introduced. Further, indicating in 1.3.2 that chapter 18 - backup and restore (and maybe other chapters later) discusses xattrs, also. Just a suggestion...

      Provide by Andreas was:

      "trusted.lov" - holds layout for a regular file, or the directory default layout (== lustre.lov)
      "trusted.lma" - holds FID for current file, some flags
      "trusted.lmv" - holds layout for a striped directory (DNE 2), not present otherwise
      "trusted.link" - holds parent directory FID+filename for each link to a file (for lfs fid2path)

      Thanks!

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            LM-Triage Lustre Manual Triage
            brett.lee Brett Lee (Inactive)
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              Updated: