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  1. Lustre
  2. LU-12804

add llapi interface to FLDB for FID->target mapping

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    • Improvement
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 9223372036854775807

    Description

      It would be good to have a user interface for mapping FIDs to MDT/OST targets using the FID Location Database (FLDB). FLDB is available in memory on all clients, and in the fld.*.fldb file on the MDS. It might make sense to also add a fld.*.fldb file on the clients to facilitate this mapping (good for consistency with MDS, but problematic because it is not a "simple" file and would have to go into debugfs that is root only), or it could be an ioctl (easy to implement, but hard to run on the servers).

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