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  1. Lustre
  2. LU-19251

store HSM state for each directory in archived tree

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Details

    • Improvement
    • Resolution: Unresolved
    • Medium
    • None
    • Lustre 2.14.0, Lustre 2.16.0, Lustre 2.17.0
    • 3
    • 9223372036854775807

    Description

      In order to make policy decisions on directories in an HSM-archived directory tree, there should be some state/flag stored on the directory itself that it was created as part of an HSM restore operation, or is part of an archived directory tree.

      For example, if a directory is created because an archived bucket is restored and using "/" or "\" separators in the object names to create a directory hierarchy, then it would be useful to add a marker (e.g. flag or trusted.hsm xattr) on the directory.

      Since this HSM state on the directory needs to be understood by the MDS when a file or directory therein is being accessed/modified, it cannot be an arbitrary xattr stored on the file without adding overhead to each operation.

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              wc-triage WC Triage
              adilger Andreas Dilger
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                Created:
                Updated: