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  1. Lustre
  2. LU-5553

Support "remount-ro" option of the ldiskfs backend

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Labels:
      None
    • Severity:
      3
    • Rank (Obsolete):
      15489

      Description

      When ldiskfs hit critical errors it will remount the filesystem in read-only mode, the OST or MDT should provide read-only service properly in such situation, so that user can backup important files before further damage.

      That feature requires Lustre is able to handle -EROFS gracefully, so there could be lot of code changes in following code path:

      • Server start; (remount-ro could happen when mount ldiskfs)
      • connection handler; (it currently requires client data updating)

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              • Assignee:
                yong.fan nasf (Inactive)
                Reporter:
                niu Niu Yawei (Inactive)
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                Dates

                • Created:
                  Updated:
                  Resolved: