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Status Future consideration
Workspace Storage Scale (formerly known as GPFS)
Created by Guest
Created on Jan 31, 2023

RELATED IDEAS

Make mmclone permissions work like cp

Currently, a file clone created with mmclone always has its group owner set to the primary gid of the creating process, without regard to the setgid bit of the containing directory, and without regard to the group owner of the original file. Other methods of file creation copy the group owner from the containing directory when its setgid bit is set.

FWIW, POSIX specifies this behavior (indirectly) for cp as "Implementations shall provide a way to initialize the file's group ID to the group ID of the parent directory."

Alternatively, at least one competing file-clone implementation (Netapp's) preserves the original file's group owner when creating a clone. IMO, cp-like behavior makes more sense, but I could understand an argument for doing it that way instead.

Idea priority Medium
  • Guest
    Reply
    |     Feb 17, 2023

    Spectrum Scale development: for more details concerning this suggestion, including examples and references to the code, please see GPFS RTC issue 307065.

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